1 - H - Hydrogen
Atomic Weight: 1.00794 g/mol
Oxidation States: 1
Boiling Point: 20.28 K
Melting Point: 13.81 K
Density: 0.0899 (Gas 273K g/l)
Electron Configuration: 1s1
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 2.10
Heat of Vaporization: 0.4581 kJ/mol
Heat of Fusion: 0.0585 kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 0.1815 Wm-K- (at 300 K)
Specific Heat Capacity: 14.304 Jg-K- (at 300 K)
First Ionization Potential: 13.598
Atomic Volume: 14.10 cm/mol
Atomic Radius: 2.08 
Covalent Radius: 0.32 
Synthetic: No
2 - He - Helium
Atomic Weight: 4.00260 g/mol
Oxidation States: --
Boiling Point: 4.216 K
Melting Point: 0.95 K
Density: 0.1785 (Gas 273K g/l)
Electron Configuration: 1s2
Acid/Base Properties: --
Crystal Structure: Hexagonal
Electronegativity: --
Heat of Vaporization: 0.084 kJ/mol
Heat of Fusion: 0.021 kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 0.152 Wm-K- (at 300 K)
Specific Heat Capacity: 5.193 Jg-K- (at 300 K)
First Ionization Potential: 24.587
Atomic Volume: 31.80 cm/mol
Atomic Radius: --
Covalent Radius: 0.93 
Synthetic: No
3 - Li - Lithium
Atomic Weight: 6.941 g/mol
Oxidation States: 1
Boiling Point: 1615 K
Melting Point: 453.7 K
Density: 0.53 g/cm
Electron Configuration: 1s2,2s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, body centered
Electronegativity: 0.98
Heat of Vaporization: 147.1 kJ/mol
Heat of Fusion: 3.0 kJ/mol
Electrical Conductivity: 11.7 10^6omg-cm-
Thermal Conductivity: 84.7 Wm-K- (at 300 K)
Specific Heat Capacity: 3.582 Jg-K- (at 300 K)
First Ionization Potential: 5.392
Atomic Volume: 13.10 cm/mol
Atomic Radius: 1.55 
Covalent Radius: 1.23 
Synthetic: No
4 - Be - Beryllium
Atomic Weight: 9.01218 g/mol
Oxidation States: 2
Boiling Point: 3243 K
Melting Point: 1560 K
Density: 1.85 g/cm
Electron Configuration: 1s2,2s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1.57
Heat of Vaporization: 297 kJ/mol
Heat of Fusion: 11.71 kJ/mol
Electrical Conductivity: 25 10^6omg-cm-
Thermal Conductivity: 200 Wm-K- (at 300 K)
Specific Heat Capacity: 1.825 Jg-K- (at 300 K)
First Ionization Potential: 9.322
Atomic Volume: 5.0 cm/mol
Atomic Radius: 1.12 
Covalent Radius: 0.90 
Synthetic: No
5 - B - Boron
Atomic Weight: 10.811 g/mol
Oxidation States: 3
Boiling Point: 4275 K
Melting Point: 2365 K
Density: 2.34 g/cm
Electron Configuration: 1s2,2s2,p1
Acid/Base Properties: Acidic
Crystal Structure: Rhombohedral
Electronegativity: 2.04
Heat of Vaporization: 507.8 kJ/mol
Heat of Fusion: 22.6 kJ/mol
Electrical Conductivity: 5x10e-12 10^6omg-cm-
Thermal Conductivity: 27.0 Wm-K- (at 300 K)
Specific Heat Capacity: 1.026 Jg-K- (at 300 K)
First Ionization Potential: 8.298
Atomic Volume: 4.60 cm/mol
Atomic Radius: 0.98 
Covalent Radius: 0.82 
Synthetic: No
6 - C - Carbon
Atomic Weight: 12.011 g/mol
Oxidation States: +/-4, 2
Boiling Point: 5100* K
Melting Point: 3825* K
Density: 2.26 g/cm
Electron Configuration: 1s2,2s2,p2
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 2.55
Heat of Vaporization: 715 kJ/mol
Heat of Fusion: --
Electrical Conductivity: 0.07 10^6omg-cm-
Thermal Conductivity: 80-230 Wm-K- (at 300 K)
Specific Heat Capacity: 0.709 Jg-K- (at 300 K)
First Ionization Potential: 11.260
Atomic Volume: 5.30 cm/mol
Atomic Radius: 0.91 
Covalent Radius: 0.77 
Synthetic: No
7 - N - Nitrogen
Atomic Weight: 14.0067 g/mol
Oxidation States: +/-3, 5,4,2
Boiling Point: 77.344 K
Melting Point: 63.15 K
Density: 1.251 (Gas 273K g/l)
Electron Configuration: 1s2,2s2,p3
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 3.04
Heat of Vaporization: 2.7928 kJ/mol
Heat of Fusion: 0.36 kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 0.02598 Wm-K- (at 300 K)
Specific Heat Capacity: 1.042 Jg-K- (at 300 K)
First Ionization Potential: 14.534
Atomic Volume: 17.30 cm/mol
Atomic Radius: 0.92 
Covalent Radius: 0.75 
Synthetic: No
8 - O - Oxygen
Atomic Weight: 15.9994 g/mol
Oxidation States: -2
Boiling Point: 90.188 K
Melting Point: 54.8 K
Density: 1.429 (Gas 273K g/l)
Electron Configuration: 1s2,2s2,p4
Acid/Base Properties: --
Crystal Structure: Cubic
Electronegativity: 3.44
Heat of Vaporization: 3.4109 kJ/mol
Heat of Fusion: 0.222 kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 0.2674 Wm-K- (at 300 K)
Specific Heat Capacity: 0.92 Jg-K- (at 300 K)
First Ionization Potential: 13.618
Atomic Volume: 14.0 cm/mol
Atomic Radius: 0.65 
Covalent Radius: 0.73 
Synthetic: No
9 - F - Fluorine
Atomic Weight: 18.99840 g/mol
Oxidation States: -1
Boiling Point: 85.0 K
Melting Point: 53.65 K
Density: 1.696 (Gas 273K g/l)
Electron Configuration: 1s2,2s2,p5
Acid/Base Properties: --
Crystal Structure: Cubic
Electronegativity: 3.98
Heat of Vaporization: 3.2698 kJ/mol
Heat of Fusion: 0.26 kJ/mol
Electrical Conductivity: --*
Thermal Conductivity: 0.0279 Wm-K- (at 300 K)
Specific Heat Capacity: 0.824 Jg-K- (at 300 K)
First Ionization Potential: 17.422
Atomic Volume: 17.10 cm/mol
Atomic Radius: 0.57 
Covalent Radius: 0.72 
Synthetic: No
10 - Ne - Neon
Atomic Weight: 20.1797 g/mol
Oxidation States: --
Boiling Point: 27.10 K
Melting Point: 24.55 K
Density: 0.900 (Gas 273K g/l)
Electron Configuration: 1s2,2s2,p6
Acid/Base Properties: --
Crystal Structure: Cubic, face centered
Electronegativity: --
Heat of Vaporization: 1.77 kJ/mol
Heat of Fusion: 0.34 kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 0.0493 Wm-K- (at 300 K)
Specific Heat Capacity: 1.030 Jg-K- (at 300 K)
First Ionization Potential: 21.564
Atomic Volume: 16.90 cm/mol
Atomic Radius: 0.51 
Covalent Radius: 0.71 
Synthetic: No
11 - Na - Sodium
Atomic Weight: 22.98977 g/mol
Oxidation States: 1
Boiling Point: 1156 K
Melting Point: 371.0 K
Density: 0.97 g/cm
Electron Configuration: [Ne]3s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, body centered
Electronegativity: 0.93
Heat of Vaporization: 98.01 kJ/mol
Heat of Fusion: 2.601 kJ/mol
Electrical Conductivity: 20.1 10^6omg-cm-
Thermal Conductivity: 141 Wm-K- (at 300 K)
Specific Heat Capacity: 1.23 Jg-K- (at 300 K)
First Ionization Potential: 5.139
Atomic Volume: 23.70 cm/mol
Atomic Radius: 1.90 
Covalent Radius: 1.23 
Synthetic: No
12 - Mg - Magnesium
Atomic Weight: 24.305 g/mol
Oxidation States: 2
Boiling Point: 1380 K
Melting Point: 922 K
Density: 1.74 g/cm
Electron Configuration: [Ne]3s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.31
Heat of Vaporization: 127.6 kJ/mol
Heat of Fusion: 8.95 kJ/mol
Electrical Conductivity: 22.4 10^6omg-cm-
Thermal Conductivity: 156 Wm-K- (at 300 K)
Specific Heat Capacity: 1.02 Jg-K- (at 300 K)
First Ionization Potential: 7.646
Atomic Volume: 14.0 cm/mol
Atomic Radius: 1.60 
Covalent Radius: 1.36 
Synthetic: No
13 - Al - Aluminum
Atomic Weight: 26.98154 g/mol
Oxidation States: 3
Boiling Point: 2740 K
Melting Point: 933.5 K
Density: 2.70 g/cm
Electron Configuration: [Ne]3s2,p1
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, face centered
Electronegativity: 1.61
Heat of Vaporization: 290.8 kJ/mol
Heat of Fusion: 10.7 kJ/mol
Electrical Conductivity: 37.7 10^6omg-cm-
Thermal Conductivity: 237 Wm-K- (at 300 K)
Specific Heat Capacity: 0.90 Jg-K- (at 300 K)
First Ionization Potential: 5.986
Atomic Volume: 10.0 cm/mol
Atomic Radius: 1.43 
Covalent Radius: 1.18 
Synthetic: No
14 - Si - Silicon
Atomic Weight: 28.0855 g/mol
Oxidation States: 4,2
Boiling Point: 2630 K
Melting Point: 1683 K
Density: 2.33 g/cm
Electron Configuration: [Ne]3s2,p2
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, face centered
Electronegativity: 1.90
Heat of Vaporization: 359 kJ/mol
Heat of Fusion: 50.2 kJ/mol
Electrical Conductivity: 4x10e-4 10^6omg-cm-
Thermal Conductivity: 148 Wm-K- (at 300 K)
Specific Heat Capacity: 0.70 Jg-K- (at 300 K)
First Ionization Potential: 8.151
Atomic Volume: 12.1 cm/mol
Atomic Radius: 1.32 
Covalent Radius: 1.11 
Synthetic: No
15 - P - Phosphorus
Atomic Weight: 30.97376 g/mol
Oxidation States: 5, +/-3,4
Boiling Point: 553 K
Melting Point: 317.3 K
Density: 1.82 g/cm
Electron Configuration: [Ne]3s2,p3
Acid/Base Properties: Acidic
Crystal Structure: Monoclinic
Electronegativity: 2.19
Heat of Vaporization: 12.4 kJ/mol
Heat of Fusion: 0.63 kJ/mol
Electrical Conductivity: 10e-16 10^6omg-cm-
Thermal Conductivity: 0.235 Wm-K- (at 300 K)
Specific Heat Capacity: 0.769 Jg-K- (at 300 K)
First Ionization Potential: 10.486
Atomic Volume: 17.0 cm/mol
Atomic Radius: 1.28 
Covalent Radius: 1.06 
Synthetic: No
16 - S - Sulfur
Atomic Weight: 32.066 g/mol
Oxidation States: 6, +/-2,4
Boiling Point: 717.62 K
Melting Point: 392.2 K
Density: 2.07 g/cm
Electron Configuration: [Ne]3s2,p4
Acid/Base Properties: Acidic
Crystal Structure: Orthorhombic
Electronegativity: 2.58
Heat of Vaporization: 10 kJ/mol
Heat of Fusion: 1.73 kJ/mol
Electrical Conductivity: 5x10e-16 10^6omg-cm-
Thermal Conductivity: 0.269 Wm-K- (at 300 K)
Specific Heat Capacity: 0.710 Jg-K- (at 300 K)
First Ionization Potential: 10.360
Atomic Volume: 15.50 cm/mol
Atomic Radius: 1.27 
Covalent Radius: 1.02 
Synthetic: No
17 - Cl - Chlorine
Atomic Weight: 35.4527 g/mol
Oxidation States: +/-1, 3,5,7
Boiling Point: 239.18 K
Melting Point: 172.17 K
Density: 3.214 (Gas 273K g/l)
Electron Configuration: [Ne]3s2,p5
Acid/Base Properties: Acidic
Crystal Structure: Orthorhombic
Electronegativity: 3.16
Heat of Vaporization: 10.20 kJ/mol
Heat of Fusion: 3.21 kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 0.0089 Wm-K- (at 300 K)
Specific Heat Capacity: 0.48 Jg-K- (at 300 K)
First Ionization Potential: 12.967
Atomic Volume: 18.7 cm/mol
Atomic Radius: 0.97 
Covalent Radius: 0.99 
Synthetic: No
18 - Ar - Argon
Atomic Weight: 39.948 g/mol
Oxidation States: --
Boiling Point: 87.45 K
Melting Point: 83.95 K
Density: 1.784 (Gas 273K g/l)
Electron Configuration: [Ne]3s2,p6
Acid/Base Properties: --
Crystal Structure: Cubic, face centered
Electronegativity: --
Heat of Vaporization: 6.506 kJ/mol
Heat of Fusion: 1.188 kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 0.0177 Wm-K- (at 300 K)
Specific Heat Capacity: 0.520 Jg-K- (at 300 K)
First Ionization Potential: 15.759
Atomic Volume: 24.2 cm/mol
Atomic Radius: 0.88 
Covalent Radius: 0.98 
Synthetic: No
19 - K - Potassium
Atomic Weight: 39.0983 g/mol
Oxidation States: 1
Boiling Point: 1033 K
Melting Point: 336.8 K
Density: 0.86 g/cm
Electron Configuration: [Ar]4s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, body centered
Electronegativity: 0.82
Heat of Vaporization: 76.9 kJ/mol
Heat of Fusion: 2.33 kJ/mol
Electrical Conductivity: 16.4 10^6omg-cm-
Thermal Conductivity: 102.5 Wm-K- (at 300 K)
Specific Heat Capacity: 0.757 Jg-K- (at 300 K)
First Ionization Potential: 4.341
Atomic Volume: 45.30 cm/mol
Atomic Radius: 2.35 
Covalent Radius: 2.03 
Synthetic: No
20 - Ca - Calcium
Atomic Weight: 40.078 g/mol
Oxidation States: 2
Boiling Point: 1757 K
Melting Point: 1112 K
Density: 1.55 g/cm
Electron Configuration: [Ar]4s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 1.00
Heat of Vaporization: 154.67 kJ/mol
Heat of Fusion: 8.53 kJ/mol
Electrical Conductivity: 31.3 10^6omg-cm-
Thermal Conductivity: 200 Wm-K- (at 300 K)
Specific Heat Capacity: 0.647 Jg-K- (at 300 K)
First Ionization Potential: 6.113
Atomic Volume: 29.90 cm/mol
Atomic Radius: 1.97 
Covalent Radius: 1.74 
Synthetic: No
21 - Sc - Scandium
Atomic Weight: 44.9559 g/mol
Oxidation States: 3
Boiling Point: 3109 K
Melting Point: 1814 K
Density: 2.99 g/cm
Electron Configuration: [Ar]3d1,4s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.36
Heat of Vaporization: 304.80 kJ/mol
Heat of Fusion: 16.11 kJ/mol
Electrical Conductivity: 1.5 10^6omg-cm-
Thermal Conductivity: 15.8 Wm-K- (at 300 K)
Specific Heat Capacity: 0.568 Jg-K- (at 300 K)
First Ionization Potential: 6.54
Atomic Volume: 15.0 cm/mol
Atomic Radius: 1.62 
Covalent Radius: 1.44 
Synthetic: No
22 - Ti - Titanium
Atomic Weight: 47.88 g/mol
Oxidation States: 4, 3
Boiling Point: 3560 K
Melting Point: 1935 K
Density: 4.54 g/cm
Electron Configuration: [Ar]3d2,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1.54
Heat of Vaporization: 425.2 kJ/mol
Heat of Fusion: 18.6 kJ/mol
Electrical Conductivity: 2.6 10^6omg-cm-
Thermal Conductivity: 21.9 Wm-K- (at 300 K)
Specific Heat Capacity: 0.523 Jg-K- (at 300 K)
First Ionization Potential: 6.82
Atomic Volume: 10.60 cm/mol
Atomic Radius: 1.45 
Covalent Radius: 1.32 
Synthetic: No
23 - V - Vanadium
Atomic Weight: 50.9415 g/mol
Oxidation States: 5, 4,3,2
Boiling Point: 3650 K
Melting Point: 2136 K
Density: 6.11 g/cm
Electron Configuration: [Ar]3d3,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, body centered
Electronegativity: 1.63
Heat of Vaporization: 446.7 kJ/mol
Heat of Fusion: 22.8 kJ/mol
Electrical Conductivity: 4.0 10^6omg-cm-
Thermal Conductivity: 30.7 Wm-K- (at 300 K)
Specific Heat Capacity: 0.489 Jg-K- (at 300 K)
First Ionization Potential: 6.74
Atomic Volume: 8.35 cm/mol
Atomic Radius: 1.34 
Covalent Radius: 1.22 
Synthetic: No
24 - Cr - Chromium
Atomic Weight: 51.996 g/mol
Oxidation States: 3, 6,2
Boiling Point: 2945 K
Melting Point: 2130 K
Density: 7.19 g/cm
Electron Configuration: [Ar]3d5,4s1
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 1.66
Heat of Vaporization: 339.5 kJ/mol
Heat of Fusion: 20 kJ/mol
Electrical Conductivity: 7.9 10^6omg-cm-
Thermal Conductivity: 93.7 Wm-K- (at 300 K)
Specific Heat Capacity: 0.449 Jg-K- (at 300 K)
First Ionization Potential: 6.766
Atomic Volume: 7.23 cm/mol
Atomic Radius: 1.30 
Covalent Radius: 1.18 
Synthetic: No
25 - Mn - Manganese
Atomic Weight: 54.9380 g/mol
Oxidation States: 4,2, 7,6,3
Boiling Point: 2235 K
Melting Point: 1518 K
Density: 7.44 g/cm
Electron Configuration: [Ar]3d5,4s2
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 1.55
Heat of Vaporization: 219.74 kJ/mol
Heat of Fusion: 14.64 kJ/mol
Electrical Conductivity: 0.5 10^6omg-cm-
Thermal Conductivity: 7.82 Wm-K- (at 300 K)
Specific Heat Capacity: 0.48 Jg-K- (at 300 K)
First Ionization Potential: 7.435
Atomic Volume: 7.39 cm/mol
Atomic Radius: 1.35 
Covalent Radius: 1.17 
Synthetic: No
26 - Fe - Iron
Atomic Weight: 55.847 g/mol
Oxidation States: 3, 2
Boiling Point: 3023 K
Melting Point: 1808 K
Density: 7.874 g/cm
Electron Configuration: [Ar]3d6,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, body centered
Electronegativity: 1.83
Heat of Vaporization: 349.5 kJ/mol
Heat of Fusion: 13.8 kJ/mol
Electrical Conductivity: 11.2 10^6omg-cm-
Thermal Conductivity: 80.2 Wm-K- (at 300 K)
Specific Heat Capacity: 0.449 Jg-K- (at 300 K)
First Ionization Potential: 7.870
Atomic Volume: 7.10 cm/mol
Atomic Radius: 1.26 
Covalent Radius: 1.16 
Synthetic: No
27 - Co - Cobalt
Atomic Weight: 58.9332 g/mol
Oxidation States: 2, 3
Boiling Point: 3143 K
Melting Point: 1768 K
Density: 8.90 g/cm
Electron Configuration: [Ar]3d7,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1.88
Heat of Vaporization: 373.3 kJ/mol
Heat of Fusion: 16.19 kJ/mol
Electrical Conductivity: 17.9 10^6omg-cm-
Thermal Conductivity: 100 Wm-K- (at 300 K)
Specific Heat Capacity: 0.421 Jg-K- (at 300 K)
First Ionization Potential: 7.86
Atomic Volume: 6.70 cm/mol
Atomic Radius: 1.25 
Covalent Radius: 1.16 
Synthetic: No
28 - Ni - Nickel
Atomic Weight: 58.6934 g/mol
Oxidation States: 2, 3
Boiling Point: 3005 K
Melting Point: 1726 K
Density: 8.90 g/cm
Electron Configuration: [Ar]3d8,4s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 1.91
Heat of Vaporization: 377.5 kJ/mol
Heat of Fusion: 17.2 kJ/mol
Electrical Conductivity: 14.6 10^6omg-cm-
Thermal Conductivity: 90.7 Wm-K- (at 300 K)
Specific Heat Capacity: 0.444 Jg-K- (at 300 K)
First Ionization Potential: 7.635
Atomic Volume: 6.60 cm/mol
Atomic Radius: 1.24 
Covalent Radius: 1.15 
Synthetic: No
29 - Cu - Copper
Atomic Weight: 63.546 g/mol
Oxidation States: 2, 1
Boiling Point: 2840 K
Melting Point: 1356.6 K
Density: 8.96 g/cm
Electron Configuration: [Ar]3d10,4s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 1.90
Heat of Vaporization: 300.5 kJ/mol
Heat of Fusion: 13.14 kJ/mol
Electrical Conductivity: 60.7 10^6omg-cm-
Thermal Conductivity: 401 Wm-K- (at 300 K)
Specific Heat Capacity: 0.385 Jg-K- (at 300 K)
First Ionization Potential: 7.726
Atomic Volume: 7.10 cm/mol
Atomic Radius: 1.28 
Covalent Radius: 1.17 
Synthetic: No
30 - Zn - Zinc
Atomic Weight: 65.39 g/mol
Oxidation States: 2
Boiling Point: 1180 K
Melting Point: 682.73 K
Density: 7.13 g/cm
Electron Configuration: [Ar]3d10,4s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1.65
Heat of Vaporization: 115.30 kJ/mol
Heat of Fusion: 7.38 kJ/mol
Electrical Conductivity: 16.9 10^6omg-cm-
Thermal Conductivity: 116 Wm-K- (at 300 K)
Specific Heat Capacity: 0.388 Jg-K- (at 300 K)
First Ionization Potential: 9.394
Atomic Volume: 9.20 cm/mol
Atomic Radius: 1.38 
Covalent Radius: 1.25 
Synthetic: No
31 - Ga - Gallium
Atomic Weight: 69.723 g/mol
Oxidation States: 3
Boiling Point: 2478 K
Melting Point: 302.92 K
Density: 5.91 g/cm
Electron Configuration: [Ar]3d10,4s2,p1
Acid/Base Properties: Amphoteric
Crystal Structure: Orthorhombic
Electronegativity: 1.81
Heat of Vaporization: 256.06 kJ/mol
Heat of Fusion: 5.59 kJ/mol
Electrical Conductivity: 1.8 10^6omg-cm-
Thermal Conductivity: 40.6 Wm-K- (at 300 K)
Specific Heat Capacity: 0.371 Jg-K- (at 300 K)
First Ionization Potential: 5.999
Atomic Volume: 11.80 cm/mol
Atomic Radius: 1.41 
Covalent Radius: 1.26 
Synthetic: No
32 - Ge - Germanium
Atomic Weight: 72.61 g/mol
Oxidation States: 4
Boiling Point: 3107 K
Melting Point: 1211.5 K
Density: 5.32 g/cm
Electron Configuration: [Ar]3d10,4s2,p2
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, face centered
Electronegativity: 2.01
Heat of Vaporization: 334.3 kJ/mol
Heat of Fusion: 31.8 kJ/mol
Electrical Conductivity: 4x10e-4 10^6omg-cm-
Thermal Conductivity: 59.9 Wm-K- (at 300 K)
Specific Heat Capacity: 0.32 Jg-K- (at 300 K)
First Ionization Potential: 7.899
Atomic Volume: 13.60 cm/mol
Atomic Radius: 1.37 
Covalent Radius: 1.22 
Synthetic: No
33 - As - Arsenic
Atomic Weight: 74.9216 g/mol
Oxidation States: +/-3, 5
Boiling Point: 876 (subl.) K
Melting Point: 1090 (28 atm.) K
Density: 5.78 g/cm
Electron Configuration: [Ar]3d10,4s2,p4
Acid/Base Properties: Acidic
Crystal Structure: Rhombohedral
Electronegativity: 2.18
Heat of Vaporization: 32.4 kJ/mol
Heat of Fusion: 27.7 kJ/mol
Electrical Conductivity: 3.8 10^6omg-cm-
Thermal Conductivity: 50 Wm-K- (at 300 K)
Specific Heat Capacity: 0.33 Jg-K- (at 300 K)
First Ionization Potential: 9.81
Atomic Volume: 13.10 cm/mol
Atomic Radius: 1.39 
Covalent Radius: 1.20 
Synthetic: No
34 - Se - Selenium
Atomic Weight: 78.96 g/mol
Oxidation States: 4, -2,6
Boiling Point: 958 K
Melting Point: 494 K
Density: 4.79 g/cm
Electron Configuration: [Ar]3d10,4s2,p4
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 2.55
Heat of Vaporization: 26.32 kJ/mol
Heat of Fusion: 5.54 kJ/mol
Electrical Conductivity: 8 10^6omg-cm-
Thermal Conductivity: 2.04 Wm-K- (at 300 K)
Specific Heat Capacity: 0.32 Jg-K- (at 300 K)
First Ionization Potential: 9.752
Atomic Volume: 16.50 cm/mol
Atomic Radius: 1.40 
Covalent Radius: 1.16 
Synthetic: No
35 - Br - Bromine
Atomic Weight: 79.904 g/mol
Oxidation States: +/-1, 5,7
Boiling Point: 331.85 K
Melting Point: 265.95 K
Density: 3.12 g/cm
Electron Configuration: [Ar]3d10,4s2,p5
Acid/Base Properties: Acidic
Crystal Structure: Orthorhombic
Electronegativity: 2.96
Heat of Vaporization: 14.725 kJ/mol
Heat of Fusion: 5.286 kJ/mol
Electrical Conductivity: 10e-16 10^6omg-cm-
Thermal Conductivity: 0.122 Wm-K- (at 300 K)
Specific Heat Capacity: 0.266 Jg-K- (at 300 K)
First Ionization Potential: 11.814
Atomic Volume: 23.5 cm/mol
Atomic Radius: 1.12 
Covalent Radius: 1.14 
Synthetic: No
36 - Kr - Krypton
Atomic Weight: 83.80 g/mol
Oxidation States: 0,2
Boiling Point: 120.85 K
Melting Point: 116 K
Density: 1.784 (Gas 273K g/l)
Electron Configuration: [Ar]3d10,4s2,p6
Acid/Base Properties: --
Crystal Structure: Cubic, face centered
Electronegativity: --
Heat of Vaporization: 9.029 kJ/mol
Heat of Fusion: 1.638 kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 0.00949 Wm-K- (at 300 K)
Specific Heat Capacity: 0.248 Jg-K- (at 300 K)
First Ionization Potential: 13.999
Atomic Volume: 32.2 cm/mol
Atomic Radius: 1.03 
Covalent Radius: 1.89 
Synthetic: No
37 - Rb - Rubidium
Atomic Weight: 85.4678 g/mol
Oxidation States: 1
Boiling Point: 961 K
Melting Point: 312.63 K
Density: 1.532 g/cm
Electron Configuration: [Kr]5s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, body centered
Electronegativity: 0.82
Heat of Vaporization: 69.2 kJ/mol
Heat of Fusion: 2.34 kJ/mol
Electrical Conductivity: 47.8 10^6omg-cm-
Thermal Conductivity: 58.2 Wm-K- (at 300 K)
Specific Heat Capacity: 0.363 Jg-K- (at 300 K)
First Ionization Potential: 4.177
Atomic Volume: 55.9 cm/mol
Atomic Radius: 2.48 
Covalent Radius: 2.16 
Synthetic: No
38 - Sr - Strontium
Atomic Weight: 87.62 g/mol
Oxidation States: 2
Boiling Point: 1655 K
Melting Point: 1042 K
Density: 2.54 g/cm
Electron Configuration: [Kr]5s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 0.95
Heat of Vaporization: 136.9 kJ/mol
Heat of Fusion: 8.2 kJ/mol
Electrical Conductivity: 5.0 10^6omg-cm-
Thermal Conductivity: 35.3 Wm-K- (at 300 K)
Specific Heat Capacity: 0.30 Jg-K- (at 300 K)
First Ionization Potential: 5.695
Atomic Volume: 33.7 cm/mol
Atomic Radius: 2.15 
Covalent Radius: 1.91 
Synthetic: No
39 - Y - Yttrium
Atomic Weight: 88.9059 g/mol
Oxidation States: 3
Boiling Point: 3611 K
Melting Point: 1795 K
Density: 4.47 g/cm
Electron Configuration: [Kr]4d1,5s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.22
Heat of Vaporization: 393.3 kJ/mol
Heat of Fusion: 17.15 kJ/mol
Electrical Conductivity: 1.8 10^6omg-cm-
Thermal Conductivity: 17.2 Wm-K- (at 300 K)
Specific Heat Capacity: 0.30 Jg-K- (at 300 K)
First Ionization Potential: 6.38
Atomic Volume: 19.80 cm/mol
Atomic Radius: 1.78 
Covalent Radius: 1.62 
Synthetic: No
40 - Zr - Zirconium
Atomic Weight: 91.224 g/mol
Oxidation States: 4
Boiling Point: 4682 K
Melting Point: 2128 K
Density: 6.51 g/cm
Electron Configuration: [Kr]4d2,5s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1.33
Heat of Vaporization: 590.5 kJ/mol
Heat of Fusion: 21 kJ/mol
Electrical Conductivity: 2.3 10^6omg-cm-
Thermal Conductivity: 22.7 Wm-K- (at 300 K)
Specific Heat Capacity: 0.278 Jg-K- (at 300 K)
First Ionization Potential: 6.84
Atomic Volume: 14.10 cm/mol
Atomic Radius: 1.60 
Covalent Radius: 1.45 
Synthetic: No
41 - Nb - Niobium
Atomic Weight: 92.9064 g/mol
Oxidation States: 5, 3
Boiling Point: 5015 K
Melting Point: 2742 K
Density: 8.57 g/cm
Electron Configuration: [Kr]4d4,5s1
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 1.6
Heat of Vaporization: 690.1 kJ/mol
Heat of Fusion: 26.9 kJ/mol
Electrical Conductivity: 6.6 10^6omg-cm-
Thermal Conductivity: 53.7 Wm-K- (at 300 K)
Specific Heat Capacity: 0.265 Jg-K- (at 300 K)
First Ionization Potential: 6.88
Atomic Volume: 10.80 cm/mol
Atomic Radius: 1.46 
Covalent Radius: 1.34 
Synthetic: No
42 - Mo - Molybdenum
Atomic Weight: 95.94 g/mol
Oxidation States: 6, 5,4,3,2
Boiling Point: 4912 K
Melting Point: 2896 K
Density: 10.22 g/cm
Electron Configuration: [Kr]4d5,5s1
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 2.16
Heat of Vaporization: 590.4 kJ/mol
Heat of Fusion: 36 kJ/mol
Electrical Conductivity: 17.3 10^6omg-cm-
Thermal Conductivity: 138 Wm-K- (at 300 K)
Specific Heat Capacity: 0.25 Jg-K- (at 300 K)
First Ionization Potential: 7.099
Atomic Volume: 9.40 cm/mol
Atomic Radius: 1.39 
Covalent Radius: 1.30 
Synthetic: No
43 - Tc - Technetium
Atomic Weight: 98 (iso.) g/mol
Oxidation States: 7
Boiling Point: 4538 K
Melting Point: 2477 K
Density: 11.5 g/cm
Electron Configuration: [Kr]4d5,5s2
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 1.9
Heat of Vaporization: 502.0 kJ/mol
Heat of Fusion: 23 kJ/mol
Electrical Conductivity: 0.001 10^6omg-cm-
Thermal Conductivity: 50.6 Wm-K- (at 300 K)
Specific Heat Capacity: 0.24 Jg-K- (at 300 K)
First Ionization Potential: 7.28
Atomic Volume: 8.5 cm/mol
Atomic Radius: 1.36 
Covalent Radius: 1.27 
Synthetic: Yes
44 - Ru - Ruthenium
Atomic Weight: 101.07 g/mol
Oxidation States: 4, 2,3,6,8
Boiling Point: 4425 K
Melting Point: 2610 K
Density: 12.37 g/cm
Electron Configuration: [Kr]4d7,5s1
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 2.2
Heat of Vaporization: 567.77 kJ/mol
Heat of Fusion: 25.52 kJ/mol
Electrical Conductivity: 14.9 10^6omg-cm-
Thermal Conductivity: 117 Wm-K- (at 300 K)
Specific Heat Capacity: 0.238 Jg-K- (at 300 K)
First Ionization Potential: 7.37
Atomic Volume: 8.30 cm/mol
Atomic Radius: 1.34 
Covalent Radius: 1.25 
Synthetic: No
45 - Rh - Rhodium
Atomic Weight: 102.9055 g/mol
Oxidation States: 3, 2,4
Boiling Point: 3970 K
Melting Point: 2236 K
Density: 12.41 g/cm
Electron Configuration: [Kr]4d8,5s1
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, face centered
Electronegativity: 2.28
Heat of Vaporization: 495.39 kJ/mol
Heat of Fusion: 21.76 kJ/mol
Electrical Conductivity: 23 10^6omg-cm-
Thermal Conductivity: 150 Wm-K- (at 300 K)
Specific Heat Capacity: 0.242 Jg-K- (at 300 K)
First Ionization Potential: 7.46
Atomic Volume: 8.30 cm/mol
Atomic Radius: 1.34 
Covalent Radius: 1.25 
Synthetic: No
46 - Pd - Palladium
Atomic Weight: 106.42 g/mol
Oxidation States: 2,4
Boiling Point: 3240 K
Melting Point: 1825 K
Density: 12.0 g/cm
Electron Configuration: [Kr]4d10
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 2.20
Heat of Vaporization: 393.3 kJ/mol
Heat of Fusion: 16.74 kJ/mol
Electrical Conductivity: 10.0 10^6omg-cm-
Thermal Conductivity: 71.8 Wm-K- (at 300 K)
Specific Heat Capacity: 0.244 Jg-K- (at 300 K)
First Ionization Potential: 8.34
Atomic Volume: 8.90 cm/mol
Atomic Radius: 1.37 
Covalent Radius: 1.28 
Synthetic: No
47 - Ag - Silver
Atomic Weight: 107.868 g/mol
Oxidation States: 1
Boiling Point: 2436 K
Melting Point: 1235.08 K
Density: 10.50 g/cm
Electron Configuration: [Kr]4d10,5s1
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, face centered
Electronegativity: 1.93
Heat of Vaporization: 250.60 kJ/mol
Heat of Fusion: 11.30 kJ/mol
Electrical Conductivity: 62.9 10^6omg-cm-
Thermal Conductivity: 429 Wm-K- (at 300 K)
Specific Heat Capacity: 0.235 Jg-K- (at 300 K)
First Ionization Potential: 7.576
Atomic Volume: 10.30 cm/mol
Atomic Radius: 1.44 
Covalent Radius: 1.34 
Synthetic: No
48 - Cd - Cadmium
Atomic Weight: 112.41 g/mol
Oxidation States: 2
Boiling Point: 1040 K
Melting Point: 594.26 K
Density: 8.65 g/cm
Electron Configuration: [Kr]4d10,5s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.69
Heat of Vaporization: 99.87 kJ/mol
Heat of Fusion: 6.07 kJ/mol
Electrical Conductivity: 14.7 10^6omg-cm-
Thermal Conductivity: 96.8 Wm-K- (at 300 K)
Specific Heat Capacity: 0.232 Jg-K- (at 300 K)
First Ionization Potential: 8.993
Atomic Volume: 13.10 cm/mol
Atomic Radius: 1.71 
Covalent Radius: 1.41 
Synthetic: No
49 - In - Indium
Atomic Weight: 114.82 g/mol
Oxidation States: 3
Boiling Point: 2350 K
Melting Point: 429.78 K
Density: 7.31 g/cm
Electron Configuration: [Kr]4d10,5s2,p1
Acid/Base Properties: Amphoteric
Crystal Structure: Tetragonal
Electronegativity: 1.78
Heat of Vaporization: 226.35 kJ/mol
Heat of Fusion: 3.26 kJ/mol
Electrical Conductivity: 3.4 10^6omg-cm-
Thermal Conductivity: 81.6 Wm-K- (at 300 K)
Specific Heat Capacity: 0.233 Jg-K- (at 300 K)
First Ionization Potential: 5.786
Atomic Volume: 15.70 cm/mol
Atomic Radius: 1.66 
Covalent Radius: 1.44 
Synthetic: No
50 - Sn - Tin
Atomic Weight: 118.710 g/mol
Oxidation States: 4, 2
Boiling Point: 2876 K
Melting Point: 505.12 K
Density: 7.31 g/cm
Electron Configuration: [Kr]4d10,5s2,p2
Acid/Base Properties: Amphoteric
Crystal Structure: Tetragonal
Electronegativity: 1.96
Heat of Vaporization: 290.37 kJ/mol
Heat of Fusion: 7.2 kJ/mol
Electrical Conductivity: 8.7 10^6omg-cm-
Thermal Conductivity: 66.6 Wm-K- (at 300 K)
Specific Heat Capacity: 0.228 Jg-K- (at 300 K)
First Ionization Potential: 7.344
Atomic Volume: 16.30 cm/mol
Atomic Radius: 1.62 
Covalent Radius: 1.41 
Synthetic: No
51 - Sb - Antimony
Atomic Weight: 121.757 g/mol
Oxidation States: +/-3, 5
Boiling Point: 1860 K
Melting Point: 903.91 K
Density: 6.69 g/cm
Electron Configuration: [Kr]4d10,5s2,p3
Acid/Base Properties: Acidic
Crystal Structure: Rhombohedral
Electronegativity: 2.05
Heat of Vaporization: 67.97 kJ/mol
Heat of Fusion: 19.83 kJ/mol
Electrical Conductivity: 2.6 10^6omg-cm-
Thermal Conductivity: 24.3 Wm-K- (at 300 K)
Specific Heat Capacity: 0.207 Jg-K- (at 300 K)
First Ionization Potential: 8.641
Atomic Volume: 18.40 cm/mol
Atomic Radius: 1.59 
Covalent Radius: 1.40 
Synthetic: No
52 - Te - Tellurium
Atomic Weight: 127.60 g/mol
Oxidation States: 4, -2,6
Boiling Point: 1261 K
Melting Point: 722.72 K
Density: 6.24 g/cm
Electron Configuration: [Kr]4d10,5s2,p4
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 2.1
Heat of Vaporization: 50.63 kJ/mol
Heat of Fusion: 17.49 kJ/mol
Electrical Conductivity: 2x10e-4 10^6omg-cm-
Thermal Conductivity: 2.35 Wm-K- (at 300 K)
Specific Heat Capacity: 0.202 Jg-K- (at 300 K)
First Ionization Potential: 9.009
Atomic Volume: 20.50 cm/mol
Atomic Radius: 1.42 
Covalent Radius: 1.36 
Synthetic: No
53 - I - Iodine
Atomic Weight: 126.9045 g/mol
Oxidation States: +/-1, 5,7
Boiling Point: 457.5 K
Melting Point: 386.7 K
Density: 4.93 g/cm
Electron Configuration: [Kr]4d10,5s2,p5
Acid/Base Properties: Acidic
Crystal Structure: Orthorhombic
Electronegativity: 2.66
Heat of Vaporization: 20.9 kJ/mol
Heat of Fusion: 7.76 kJ/mol
Electrical Conductivity: 10e-11 10^6omg-cm-
Thermal Conductivity: 0.449 Wm-K- (at 300 K)
Specific Heat Capacity: 0.145 Jg-K- (at 300 K)
First Ionization Potential: 10.451
Atomic Volume: 25.70 cm/mol
Atomic Radius: 1.32 
Covalent Radius: 1.33 
Synthetic: No
54 - Xe - Xenon
Atomic Weight: 131.29 g/mol
Oxidation States: 0,2,4,6
Boiling Point: 165.1 K
Melting Point: 161.39 K
Density: 5.90 (Gas 273K g/l)
Electron Configuration: [Kr]4d10,5s2,p6
Acid/Base Properties: --
Crystal Structure: Cubic, face centered
Electronegativity: 2.6
Heat of Vaporization: 12.64 kJ/mol
Heat of Fusion: 2.30 kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 0.00569 Wm-K- (at 300 K)
Specific Heat Capacity: 0.158 Jg-K- (at 300 K)
First Ionization Potential: 12.130
Atomic Volume: 42.9 cm/mol
Atomic Radius: 1.24 
Covalent Radius: 1.31 
Synthetic: No
55 - Cs - Cesium
Atomic Weight: 132.9054 g/mol
Oxidation States: 1
Boiling Point: 944 K
Melting Point: 301.54 K
Density: 1.87 g/cm
Electron Configuration: [Xe]6s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, body centered
Electronegativity: 0.79
Heat of Vaporization: 67.740 kJ/mol
Heat of Fusion: 2.092 kJ/mol
Electrical Conductivity: 5.3 10^6omg-cm-
Thermal Conductivity: 35.9 Wm-K- (at 300 K)
Specific Heat Capacity: 0.24 Jg-K- (at 300 K)
First Ionization Potential: 3.894
Atomic Volume: 70 cm/mol
Atomic Radius: 2.67 
Covalent Radius: 2.35 
Synthetic: No
56 - Ba - Barium
Atomic Weight: 137.33 g/mol
Oxidation States: 2
Boiling Point: 2079 K
Melting Point: 1002 K
Density: 3.59 g/cm
Electron Configuration: [Xe]6s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, body centered
Electronegativity: 0.89
Heat of Vaporization: 140.2 kJ/mol
Heat of Fusion: 8.01 kJ/mol
Electrical Conductivity: 2.8 10^6omg-cm-
Thermal Conductivity: 18.4 Wm-K- (at 300 K)
Specific Heat Capacity: 0.204 Jg-K- (at 300 K)
First Ionization Potential: 5.212
Atomic Volume: 39.0 cm/mol
Atomic Radius: 2.22 
Covalent Radius: 1.98 
Synthetic: No
57 - La - Lanthanum
Atomic Weight: 138.9055 g/mol
Oxidation States: 3
Boiling Point: 3737 K
Melting Point: 1191 K
Density: 6.15 g/cm
Electron Configuration: [Xe]5d1,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.10
Heat of Vaporization: 399.57 kJ/mol
Heat of Fusion: 11.3 kJ/mol
Electrical Conductivity: 1.9 10^6omg-cm-
Thermal Conductivity: 13.5 Wm-K- (at 300 K)
Specific Heat Capacity: 0.19 Jg-K- (at 300 K)
First Ionization Potential: 5.58
Atomic Volume: 22.5 cm/mol
Atomic Radius: 1.38 
Covalent Radius: 1.25 
Synthetic: No
58 - Ce - Cerium
Atomic Weight: 140.12 g/mol
Oxidation States: 3,4
Boiling Point: 3715 K
Melting Point: 1071 K
Density: 6.77 g/cm
Electron Configuration: [Xe]4f2,6s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 1.12
Heat of Vaporization: 313.8 kJ/mol
Heat of Fusion: 9.20 kJ/mol
Electrical Conductivity: 1.4 10^6omg-cm-
Thermal Conductivity: 11.4 Wm-K- (at 300 K)
Specific Heat Capacity: 0.19 Jg-K- (at 300 K)
First Ionization Potential: 5.47
Atomic Volume: 21.0 cm/mol
Atomic Radius: 1.81 
Covalent Radius: 1.65 
Synthetic: No
59 - Pr - Praseodymium
Atomic Weight: 140.9077 g/mol
Oxidation States: 3,4
Boiling Point: 3785 K
Melting Point: 1204 K
Density: 6.77 g/cm
Electron Configuration: [Xe]4f3,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.13
Heat of Vaporization: 332.63 kJ/mol
Heat of Fusion: 10.04 kJ/mol
Electrical Conductivity: 1.5 10^6omg-cm-
Thermal Conductivity: 12.5 Wm-K- (at 300 K)
Specific Heat Capacity: 0.193 Jg-K- (at 300 K)
First Ionization Potential: 5.42
Atomic Volume: 20.8 cm/mol
Atomic Radius: 1.82 
Covalent Radius: 1.65 
Synthetic: No
60 - Nd - Neodymium
Atomic Weight: 144.24 g/mol
Oxidation States: 3
Boiling Point: 3347 K
Melting Point: 1294 K
Density: 6.77 g/cm
Electron Configuration: [Xe]4f4,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.14
Heat of Vaporization: 283.68 kJ/mol
Heat of Fusion: 10.88 kJ/mol
Electrical Conductivity: 1.6 10^6omg-cm-
Thermal Conductivity: 16.5 Wm-K- (at 300 K)
Specific Heat Capacity: 0.190 Jg-K- (at 300 K)
First Ionization Potential: 5.49
Atomic Volume: 20.6 cm/mol
Atomic Radius: 1.82 
Covalent Radius: 1.64 
Synthetic: No
61 - Pm - Promethium
Atomic Weight: 145 (most stable) g/mol
Oxidation States: 3
Boiling Point: 3273 K
Melting Point: 1315 K
Density: 7.22 g/cm
Electron Configuration: [Xe]4f5,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.13
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: 2 10^6omg-cm-
Thermal Conductivity: 17.9 (300K) Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 5.55
Atomic Volume: 22.4 cm/mol
Atomic Radius: --
Covalent Radius: 1.63 
Synthetic: Yes
62 - Sm - Samarium
Atomic Weight: 150.36 g/mol
Oxidation States: 3, 2
Boiling Point: 2067 K
Melting Point: 1347 K
Density: 7.52 g/cm
Electron Configuration: [Xe]4f6,6s2
Acid/Base Properties: Basic
Crystal Structure: Rhombohedral
Electronegativity: 1.17
Heat of Vaporization: 191.63 kJ/mol
Heat of Fusion: 11.09 kJ/mol
Electrical Conductivity: 1.1 10^6omg-cm-
Thermal Conductivity: 13.3 Wm-K- (at 300 K)
Specific Heat Capacity: 0.197 Jg-K- (at 300 K)
First Ionization Potential: 5.63
Atomic Volume: 19.90 cm/mol
Atomic Radius: 1.81 
Covalent Radius: 1.62 
Synthetic: No
63 - Eu - Europium
Atomic Weight: 151.965 g/mol
Oxidation States: 3, 2
Boiling Point: 1800 K
Melting Point: 1095 K
Density: 5.24 g/cm
Electron Configuration: [Xe]4f7,6s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, body centered
Electronegativity: 1.2
Heat of Vaporization: 175.73 kJ/mol
Heat of Fusion: 10.46 kJ/mol
Electrical Conductivity: 1.1 10^6omg-cm-
Thermal Conductivity: 13.9 Wm-K- (at 300 K)
Specific Heat Capacity: 0.182 Jg-K- (at 300 K)
First Ionization Potential: 5.67
Atomic Volume: 28.9 cm/mol
Atomic Radius: 1.99 
Covalent Radius: 1.85 
Synthetic: No
64 - Gd - Gadolinium
Atomic Weight: 157.25 g/mol
Oxidation States: 3
Boiling Point: 3545 K
Melting Point: 1585 K
Density: 7.90 g/cm
Electron Configuration: [Xe]4f7,5d1,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.20
Heat of Vaporization: 311.71 kJ/mol
Heat of Fusion: 15.48 kJ/mol
Electrical Conductivity: 0.8 10^6omg-cm-
Thermal Conductivity: 10.6 Wm-K- (at 300 K)
Specific Heat Capacity: 0.236 Jg-K- (at 300 K)
First Ionization Potential: 6.15
Atomic Volume: 19.9 cm/mol
Atomic Radius: 1.80 
Covalent Radius: 1.61 
Synthetic: No
65 - Tb - Terbium
Atomic Weight: 158.9253 g/mol
Oxidation States: 3, 4
Boiling Point: 3500 K
Melting Point: 1629 K
Density: 8.23 g/cm
Electron Configuration: [Xe]4f9,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.1
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: 0.9 10^6omg-cm-
Thermal Conductivity: 11.1 Wm-K- (at 300 K)
Specific Heat Capacity: 0.18 Jg-K- (at 300 K)
First Ionization Potential: 5.86
Atomic Volume: 19.2 cm/mol
Atomic Radius: 1.80 
Covalent Radius: 1.59 
Synthetic: No
66 - Dy - Dysprosium
Atomic Weight: 162.50 g/mol
Oxidation States: 3
Boiling Point: 2840 K
Melting Point: 1685 K
Density: 8.55 g/cm
Electron Configuration: [Xe]4f10,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.22
Heat of Vaporization: 230 kJ/mol
Heat of Fusion: 11.06 kJ/mol
Electrical Conductivity: 1.1 10^6omg-cm-
Thermal Conductivity: 10.7 Wm-K- (at 300 K)
Specific Heat Capacity: 0.173 Jg-K- (at 300 K)
First Ionization Potential: 5.93
Atomic Volume: 19.0 cm/mol
Atomic Radius: 1.80 
Covalent Radius: 1.59 
Synthetic: No
67 - Ho - Holmium
Atomic Weight: 164.9303 g/mol
Oxidation States: 3
Boiling Point: 2968 K
Melting Point: 1747 K
Density: 8.80 g/cm
Electron Configuration: [Xe]4f11,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.23
Heat of Vaporization: 251.04 kJ/mol
Heat of Fusion: 17.15 kJ/mol
Electrical Conductivity: 1.1 10^6omg-cm-
Thermal Conductivity: 16.2 Wm-K- (at 300 K)
Specific Heat Capacity: 0.165 Jg-K- (at 300 K)
First Ionization Potential: 6.02
Atomic Volume: 18.7 cm/mol
Atomic Radius: 1.79 
Covalent Radius: 1.58 
Synthetic: No
68 - Er - Erbium
Atomic Weight: 167.26 g/mol
Oxidation States: 3
Boiling Point: 3140 K
Melting Point: 1802 K
Density: 9.07 g/cm
Electron Configuration: [Xe]4f12,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.24
Heat of Vaporization: 292.88 kJ/mol
Heat of Fusion: 17.15 kJ/mol
Electrical Conductivity: 1.2 10^6omg-cm-
Thermal Conductivity: 14.3 Wm-K- (at 300 K)
Specific Heat Capacity: 0.168 Jg-K- (at 300 K)
First Ionization Potential: 6.101
Atomic Volume: 18.4 cm/mol
Atomic Radius: 1.78 
Covalent Radius: 1.57 
Synthetic: No
69 - Tm - Thulium
Atomic Weight: 168.9342 g/mol
Oxidation States: 3, 2
Boiling Point: 2223 K
Melting Point: 1818 K
Density: 9.32 g/cm
Electron Configuration: [Xe]4f13,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.25
Heat of Vaporization: 191* kJ/mol
Heat of Fusion: 16.8* kJ/mol
Electrical Conductivity: 1.3 10^6omg-cm-
Thermal Conductivity: 16.8 Wm-K- (at 300 K)
Specific Heat Capacity: 0.16 Jg-K- (at 300 K)
First Ionization Potential: 6.184
Atomic Volume: 18.1 cm/mol
Atomic Radius: 1.77 
Covalent Radius: 1.56 
Synthetic: No
70 - Yb - Ytterbium
Atomic Weight: 173.04 g/mol
Oxidation States: 3, 2
Boiling Point: 1469 K
Melting Point: 1092 K
Density: 6.97 g/cm
Electron Configuration: [Xe]4f14,6s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 1.1
Heat of Vaporization: 128* kJ/mol
Heat of Fusion: 7.7* kJ/mol
Electrical Conductivity: 3.7 10^6omg-cm-
Thermal Conductivity: 34.9 Wm-K- (at 300 K)
Specific Heat Capacity: 0.155 Jg-K- (at 300 K)
First Ionization Potential: 6.254
Atomic Volume: 24.8 cm/mol
Atomic Radius: 1.94 
Covalent Radius: 1.70 
Synthetic: No
71 - Lu - Lutetium
Atomic Weight: 174.967 g/mol
Oxidation States: 3
Boiling Point: 3668 K
Melting Point: 1936 K
Density: 9.84 g/cm
Electron Configuration: [Xe]4f14,5d1,6s2
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 1.27
Heat of Vaporization: 355* kJ/mol
Heat of Fusion: 18.6* kJ/mol
Electrical Conductivity: 1.5 10^6omg-cm-
Thermal Conductivity: 16.4 Wm-K- (at 300 K)
Specific Heat Capacity: 0.15 Jg-K- (at 300 K)
First Ionization Potential: 5.43
Atomic Volume: 17.8 cm/mol
Atomic Radius: 1.75 
Covalent Radius: 1.56 
Synthetic: No
72 - Hf - Hafnium
Atomic Weight: 178.49 g/mol
Oxidation States: 4
Boiling Point: 4875 K
Melting Point: 2504 K
Density: 13.31 g/cm
Electron Configuration: [Xe]4f14,5d2,6s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1.3
Heat of Vaporization: 661.07 kJ/mol
Heat of Fusion: 21.76 kJ/mol
Electrical Conductivity: 3.4 10^6omg-cm-
Thermal Conductivity: 23.0 Wm-K- (at 300 K)
Specific Heat Capacity: 0.14 Jg-K- (at 300 K)
First Ionization Potential: 6.65
Atomic Volume: 13.6 cm/mol
Atomic Radius: 1.67 
Covalent Radius: 1.44 
Synthetic: No
73 - Ta - Tantalum
Atomic Weight: 180.9479 g/mol
Oxidation States: 5
Boiling Point: 5730 K
Melting Point: 3293 K
Density: 16.65 g/cm
Electron Configuration: [Xe]4f14,5d3,6s2
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 1.5
Heat of Vaporization: 737.0 kJ/mol
Heat of Fusion: 36 kJ/mol
Electrical Conductivity: 8.1 10^6omg-cm-
Thermal Conductivity: 57.5 Wm-K- (at 300 K)
Specific Heat Capacity: 0.14 Jg-K- (at 300 K)
First Ionization Potential: 7.89
Atomic Volume: 10.90 cm/mol
Atomic Radius: 1.49 
Covalent Radius: 1.34 
Synthetic: No
74 - W - Tungsten
Atomic Weight: 183.85 g/mol
Oxidation States: 6, 5,4,3,2
Boiling Point: 5825 K
Melting Point: 3695 K
Density: 19.3 g/cm
Electron Configuration: [Xe]4f14,5d4,6s2
Acid/Base Properties: Acidic
Crystal Structure: Cubic, body centered
Electronegativity: 2.36
Heat of Vaporization: 422.58 kJ/mol
Heat of Fusion: 35.40 kJ/mol
Electrical Conductivity: 18.2 10^6omg-cm-
Thermal Conductivity: 174 Wm-K- (at 300 K)
Specific Heat Capacity: 0.13 Jg-K- (at 300 K)
First Ionization Potential: 7.89
Atomic Volume: 9.53 cm/mol
Atomic Radius: 1.41 
Covalent Radius: 1.30 
Synthetic: No
75 - Re - Rhenium
Atomic Weight: 186.207 g/mol
Oxidation States: 7,4, 6,2,-1
Boiling Point: 5870 K
Melting Point: 3455 K
Density: 21.0 g/cm
Electron Configuration: [Xe]4f14,5d5,6s2
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 1.9
Heat of Vaporization: 707.1 kJ/mol
Heat of Fusion: 33.05 kJ/mol
Electrical Conductivity: 5.8 10^6omg-cm-
Thermal Conductivity: 47.9 Wm-K- (at 300 K)
Specific Heat Capacity: 0.137 Jg-K- (at 300 K)
First Ionization Potential: 7.88
Atomic Volume: 8.85 cm/mol
Atomic Radius: 1.37 
Covalent Radius: 1.28 
Synthetic: No
76 - Os - Osmium
Atomic Weight: 190.2 g/mol
Oxidation States: 4, 2,3,6,8
Boiling Point: 5300 K
Melting Point: 3300 K
Density: 22.6 g/cm
Electron Configuration: [Xe]4f14,5d6,6s2
Acid/Base Properties: Acidic
Crystal Structure: Hexagonal
Electronegativity: 2.2
Heat of Vaporization: 627.6 kJ/mol
Heat of Fusion: 29.29 kJ/mol
Electrical Conductivity: 12.3 10^6omg-cm-
Thermal Conductivity: 87.6 Wm-K- (at 300 K)
Specific Heat Capacity: 0.13 Jg-K- (at 300 K)
First Ionization Potential: 8.7
Atomic Volume: 8.43 cm/mol
Atomic Radius: 1.35 
Covalent Radius: 1.26 
Synthetic: No
77 - Ir - Iridium
Atomic Weight: 192.22 g/mol
Oxidation States: 4, 2,3,6
Boiling Point: 4700 K
Melting Point: 2720 K
Density: 22.6 g/cm
Electron Configuration: [Xe]4f14,5d7,6s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 2.20
Heat of Vaporization: 563.58 kJ/mol
Heat of Fusion: 26.36 kJ/mol
Electrical Conductivity: 21.3 10^6omg-cm-
Thermal Conductivity: 147 Wm-K- (at 300 K)
Specific Heat Capacity: 0.130 Jg-K- (at 300 K)
First Ionization Potential: 9.1
Atomic Volume: 8.54 cm/mol
Atomic Radius: 1.36 
Covalent Radius: 1.27 
Synthetic: No
78 - Pt - Platinum
Atomic Weight: 195.08 g/mol
Oxidation States: 4, 2
Boiling Point: 4100 K
Melting Point: 2042.1 K
Density: 21.45 g/cm
Electron Configuration: [Xe]4f14,5d6,6s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 2.28
Heat of Vaporization: 510.45 kJ/mol
Heat of Fusion: 19.66 kJ/mol
Electrical Conductivity: 9.4 10^6omg-cm-
Thermal Conductivity: 71.6 Wm-K- (at 300 K)
Specific Heat Capacity: 0.13 Jg-K- (at 300 K)
First Ionization Potential: 9.0
Atomic Volume: 9.10 cm/mol
Atomic Radius: 1.39 
Covalent Radius: 1.30 
Synthetic: No
79 - Au - Gold
Atomic Weight: 196.9665 g/mol
Oxidation States: 3, 1
Boiling Point: 3130 K
Melting Point: 1337.58 K
Density: 19.3 g/cm
Electron Configuration: [Xe]4f14,5d10,6s1
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, face centered
Electronegativity: 2.54
Heat of Vaporization: 324.43 kJ/mol
Heat of Fusion: 12.36 kJ/mol
Electrical Conductivity: 48.8 10^6omg-cm-
Thermal Conductivity: 317 Wm-K- (at 300 K)
Specific Heat Capacity: 0.128 Jg-K- (at 300 K)
First Ionization Potential: 9.225
Atomic Volume: 10.20 cm/mol
Atomic Radius: 1.46 
Covalent Radius: 1.34 
Synthetic: No
80 - Hg - Mercury
Atomic Weight: 200.59 g/mol
Oxidation States: 2, 1
Boiling Point: 629.88 K
Melting Point: 234.31 K
Density: 13.55 g/cm
Electron Configuration: [Xe]4f14,5d10,6s2
Acid/Base Properties: Basic
Crystal Structure: Rhombohedral
Electronegativity: 2.00
Heat of Vaporization: 59.30 kJ/mol
Heat of Fusion: 2.292 kJ/mol
Electrical Conductivity: 1.0 10^6omg-cm-
Thermal Conductivity: 8.34 Wm-K- (at 300 K)
Specific Heat Capacity: 0.140 Jg-K- (at 300 K)
First Ionization Potential: 10.437
Atomic Volume: 14.80 cm/mol
Atomic Radius: 1.60 
Covalent Radius: 1.49 
Synthetic: No
81 - Tl - Thallium
Atomic Weight: 204.383 g/mol
Oxidation States: 1, 3
Boiling Point: 1746 K
Melting Point: 577 K
Density: 11.85 g/cm
Electron Configuration: [Xe]4f14,5d10,6s2,p1
Acid/Base Properties: Basic
Crystal Structure: Hexagonal
Electronegativity: 2.04
Heat of Vaporization: 162.09 kJ/mol
Heat of Fusion: 4.27 kJ/mol
Electrical Conductivity: 5.6 10^6omg-cm-
Thermal Conductivity: 46.1 Wm-K- (at 300 K)
Specific Heat Capacity: 0.129 Jg-K- (at 300 K)
First Ionization Potential: 6.108
Atomic Volume: 17.20 cm/mol
Atomic Radius: 1.71 
Covalent Radius: 1.48 
Synthetic: No
82 - Pb - Lead
Atomic Weight: 207.2 g/mol
Oxidation States: 2, 4
Boiling Point: 2023 K
Melting Point: 600.65 K
Density: 11.35 g/cm
Electron Configuration: [Xe]4f14,5d10,6s2,p2
Acid/Base Properties: Amphoteric
Crystal Structure: Cubic, face centered
Electronegativity: 2.33
Heat of Vaporization: 177.9 kJ/mol
Heat of Fusion: 4.77 kJ/mol
Electrical Conductivity: 4.8 10^6omg-cm-
Thermal Conductivity: 35.3 Wm-K- (at 300 K)
Specific Heat Capacity: 0.129 Jg-K- (at 300 K)
First Ionization Potential: 7.416
Atomic Volume: 18.30 cm/mol
Atomic Radius: 1.75 
Covalent Radius: 1.47 
Synthetic: No
83 - Bi - Bismuth
Atomic Weight: 208.9804 g/mol
Oxidation States: 3, 5
Boiling Point: 1837 K
Melting Point: 544.59 K
Density: 9.75 g/cm
Electron Configuration: [Xe]4f14,5d10,6s2,p3
Acid/Base Properties: Acidic
Crystal Structure: Rhombohedral
Electronegativity: 2.02
Heat of Vaporization: 179 kJ/mol
Heat of Fusion: 11.0 kJ/mol
Electrical Conductivity: 0.9 10^6omg-cm-
Thermal Conductivity: 7.87 Wm-K- (at 300 K)
Specific Heat Capacity: 0.122 Jg-K- (at 300 K)
First Ionization Potential: 7.289
Atomic Volume: 21.3 cm/mol
Atomic Radius: 1.70 
Covalent Radius: 1.46 
Synthetic: No
84 - Po - Polonium
Atomic Weight: 209 (most stable) g/mol
Oxidation States: 4, 2,6
Boiling Point: 1235.15 K
Melting Point: 527 K
Density: 9.3 g/cm
Electron Configuration: [Xe]4f14,5d10,6s2,p4
Acid/Base Properties: Amphoteric
Crystal Structure: Monoclinic
Electronegativity: 2.0
Heat of Vaporization: 120 kJ/mol
Heat of Fusion: 13 kJ/mol
Electrical Conductivity: 0.7 10^6omg-cm-
Thermal Conductivity: 20 Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 8.42
Atomic Volume: 22.70 cm/mol
Atomic Radius: 1.67 
Covalent Radius: 1.53 
Synthetic: No
85 - At - Astatine
Atomic Weight: 210 (most stable) g/mol
Oxidation States: +/-1, 3,5,7
Boiling Point: 610* K
Melting Point: 575 K
Density: --
Electron Configuration: [Xe]4f14,5d10,6s2,p5
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: 2.2
Heat of Vaporization: 30* kJ/mol
Heat of Fusion: 12* kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 1.7 Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: --
Atomic Volume: --
Atomic Radius: 1.45 
Covalent Radius: 1.47 
Synthetic: No
86 - Rn - Radon
Atomic Weight: 222 (most stable) g/mol
Oxidation States: 0,2
Boiling Point: 211.4 K
Melting Point: 202 K
Density: 9.73 g/cm
Electron Configuration: [Xe]4f14,5d10,6s2,p6
Acid/Base Properties: --
Crystal Structure: Cubic, face centered
Electronegativity: --
Heat of Vaporization: 16.40 kJ/mol
Heat of Fusion: 2.9 kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 0.00364* Wm-K- (at 300 K)
Specific Heat Capacity: 0.094 Jg-K- (at 300 K)
First Ionization Potential: 10.748
Atomic Volume: 50.5 cm/mol
Atomic Radius: 1.34 
Covalent Radius: --
Synthetic: No
87 - Fr - Francium
Atomic Weight: 223 (most stable) g/mol
Oxidation States: 1
Boiling Point: 950 K
Melting Point: 300 K
Density: --
Electron Configuration: [Rn]7s1
Acid/Base Properties: Basic
Crystal Structure: Cubic, body centered
Electronegativity: 0.7
Heat of Vaporization: 64* kJ/mol
Heat of Fusion: 2.1* kJ/mol
Electrical Conductivity: --
Thermal Conductivity: 15 Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: --
Atomic Volume: --
Atomic Radius: 2.7 
Covalent Radius: --
Synthetic: No
88 - Ra - Radium
Atomic Weight: 226.0254 g/mol
Oxidation States: 2
Boiling Point: 1413 K
Melting Point: 973 K
Density: 5.0 g/cm
Electron Configuration: [Rn]7s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, body centered
Electronegativity: 0.89
Heat of Vaporization: 136.82 kJ/mol
Heat of Fusion: 8.37 kJ/mol
Electrical Conductivity: 1.0 10^6omg-cm-
Thermal Conductivity: 18.6 Wm-K- (at 300 K)
Specific Heat Capacity: 0.094 Jg-K- (at 300 K)
First Ionization Potential: 5.279
Atomic Volume: 45.2 cm/mol
Atomic Radius: 2.33 
Covalent Radius: --
Synthetic: No
89 - Ac - Actinium
Atomic Weight: 227 (most stable) g/mol
Oxidation States: 3
Boiling Point: 3470* K
Melting Point: 1324 K
Density: 10.07 g/cm
Electron Configuration: [Rn]6d1,7s2
Acid/Base Properties: --
Crystal Structure: Cubic, face centered
Electronegativity: 1.1
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: 12 Wm-K- (at 300 K)
Specific Heat Capacity: 0.120 Jg-K- (at 300 K)
First Ionization Potential: 5.17
Atomic Volume: 22.5 cm/mol
Atomic Radius: 1.88 
Covalent Radius: --
Synthetic: No
90 - Th - Thorium
Atomic Weight: 232.0381 g/mol
Oxidation States: 4
Boiling Point: 5060 K
Melting Point: 2028 K
Density: 11.72 g/cm
Electron Configuration: [Rn]6d2,7s2
Acid/Base Properties: Basic
Crystal Structure: Cubic, face centered
Electronegativity: 1.3
Heat of Vaporization: 543.92 kJ/mol
Heat of Fusion: 15.65 kJ/mol
Electrical Conductivity: 7.1 10^6omg-cm-
Thermal Conductivity: 54 Wm-K- (at 300 K)
Specific Heat Capacity: 0.113 Jg-K- (at 300 K)
First Ionization Potential: 6.08
Atomic Volume: 19.90 cm/mol
Atomic Radius: 1.80 
Covalent Radius: 1.65 
Synthetic: No
91 - Pa - Proctactinium
Atomic Weight: 231.0359 g/mol
Oxidation States: 5, 4
Boiling Point: 4300* K
Melting Point: 1845 K
Density: 15.4 g/cm
Electron Configuration: [Rn]5f2,6d1,7s2
Acid/Base Properties: Basic
Crystal Structure: Orthorhombic
Electronegativity: 1.5
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: 5.6 10^6omg-cm-
Thermal Conductivity: 47 Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 5.88
Atomic Volume: 15.0 cm/mol
Atomic Radius: 1.61 
Covalent Radius: --
Synthetic: No
92 - U - Uranium
Atomic Weight: 238.029 g/mol
Oxidation States: 6, 5,4,3
Boiling Point: 4407 K
Melting Point: 1408 K
Density: 18.95 g/cm
Electron Configuration: [Rn]5f3,6d1,7s2
Acid/Base Properties: Amphoteric
Crystal Structure: Orthorhombic
Electronegativity: 1.38
Heat of Vaporization: 422.58 kJ/mol
Heat of Fusion: 15.48 kJ/mol
Electrical Conductivity: 3.6 10^6omg-cm-
Thermal Conductivity: 27.6 Wm-K- (at 300 K)
Specific Heat Capacity: 0.12 Jg-K- (at 300 K)
First Ionization Potential: 6.05
Atomic Volume: 12.50 cm/mol
Atomic Radius: 1.38 
Covalent Radius: 1.42 
Synthetic: No
93 - Np - Neptunium
Atomic Weight: 237.0482 g/mol
Oxidation States: 5, 6,4,3
Boiling Point: 4175* K
Melting Point: 912 K
Density: 18.95 g/cm
Electron Configuration: [Rn]5f4,6d1,7s2
Acid/Base Properties: Amphoteric
Crystal Structure: Orthorhombic
Electronegativity: 1.36
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: 0.8 10^6omg-cm-
Thermal Conductivity: 6.3 Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 6.19
Atomic Volume: 21.1 cm/mol
Atomic Radius: 1.30 
Covalent Radius: --
Synthetic: Yes
94 - Pu - Plutonium
Atomic Weight: 244 (most stable) g/mol
Oxidation States: 4, 6,5,3
Boiling Point: 3505 K
Melting Point: 913 K
Density: 20.2 g/cm
Electron Configuration: [Rn]5f6,7s2
Acid/Base Properties: Amphoteric
Crystal Structure: Monoclinic
Electronegativity: 1.36
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: 0.7 10^6omg-cm-
Thermal Conductivity: 6.74 Wm-K- (at 300 K)
Specific Heat Capacity: 0.13* Jg-K- (at 300 K)
First Ionization Potential: 6.06
Atomic Volume: 12.32 cm/mol
Atomic Radius: 1.51 
Covalent Radius: 1.08 
Synthetic: Yes
95 - Am - Americium
Atomic Weight: 243 (most stable) g/mol
Oxidation States: 3, 6,5,4
Boiling Point: 2880 K
Melting Point: 1449 K
Density: 13.7 g/cm
Electron Configuration: [Rn]5f7,7s2
Acid/Base Properties: Amphoteric
Crystal Structure: Hexagonal
Electronegativity: 1.3
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: 0.7 10^6omg-cm-
Thermal Conductivity: 10* Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 6.0
Atomic Volume: 20.8 cm/mol
Atomic Radius: 1.84 
Covalent Radius: --
Synthetic: Yes
96 - Cm - Curium
Atomic Weight: 247 (most stable) g/mol
Oxidation States: 3
Boiling Point: --
Melting Point: 1620 K
Density: 13.7 g/cm
Electron Configuration: [Rn]5f7,6d1,7s2
Acid/Base Properties: Amphoteric
Crystal Structure: --
Electronegativity: 1.3
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: 10* Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 6.02
Atomic Volume: 18.3 cm/mol
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
97 - Bk - Berkelium
Atomic Weight: 247 (most stable) g/mol
Oxidation States: 3, 4
Boiling Point: --
Melting Point: --
Density: 14* g/cm
Electron Configuration: [Rn]5f8,6d1,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: 1.3
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: 10* Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 6.23
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
98 - Cf - Californium
Atomic Weight: 251 (most stable) g/mol
Oxidation States: --
Boiling Point: --
Melting Point: 1170* K
Density: --
Electron Configuration: [Rn]5f10,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: 1.3
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: 10* Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 6.3
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
99 - Es - Einsteinium
Atomic Weight: 252 (most stable) g/mol
Oxidation States: 3
Boiling Point: --
Melting Point: 1130* K
Density: --
Electron Configuration: [Rn]5f11,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: 1.3
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: 10* Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 6.42
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
100 - Fm - Fermium
Atomic Weight: 257 (most stable) g/mol
Oxidation States: 3
Boiling Point: --
Melting Point: 1800* K
Density: --
Electron Configuration: [Rn]5f11,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: 1.3
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: 10* Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 6.50
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
101 - Md - Mendelevium
Atomic Weight: 258 (most stable) g/mol
Oxidation States: 3
Boiling Point: --
Melting Point: 1100* K
Density: --
Electron Configuration: [Rn]5f13,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: 1.3
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: 10* Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 6.58
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
102 - No - Nobelium
Atomic Weight: 259 (most stable) g/mol
Oxidation States: 3, 2
Boiling Point: --
Melting Point: 1100* K
Density: --
Electron Configuration: [Rn]5f14,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: 1.3
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: 10* Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: 6.65
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
103 - Lr - Lawrencium
Atomic Weight: 260 (most stable) g/mol
Oxidation States: 3
Boiling Point: --
Melting Point: 1900* K
Density: --
Electron Configuration: [Rn]5f14,6d1,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: 1.3
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: 10* Wm-K- (at 300 K)
Specific Heat Capacity: --
First Ionization Potential: --
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
104 - Unq - Unnilquadium
Atomic Weight: 261 (most stable) g/mol
Oxidation States: --
Boiling Point: --
Melting Point: --
Density: --
Electron Configuration: [Rn]5f14,6d2,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: --
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: --
Specific Heat Capacity: --
First Ionization Potential: --
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
105 - Unp - Unnilpentium
Atomic Weight: 262 (most stable) g/mol
Oxidation States: --
Boiling Point: --
Melting Point: --
Density: --
Electron Configuration: [Rn]5f14,6d3,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: --
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: --
Specific Heat Capacity: --
First Ionization Potential: --
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
106 - Unh - Unnilhexium
Atomic Weight: 263 (most stable) g/mol
Oxidation States: --
Boiling Point: --
Melting Point: --
Density: --
Electron Configuration: [Rn]5f14,6d4,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: --
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: --
Specific Heat Capacity: --
First Ionization Potential: --
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
107 - Uns - Unnilseptium
Atomic Weight: 262 (most stable) g/mol
Oxidation States: --
Boiling Point: --
Melting Point: --
Density: --
Electron Configuration: [Rn]5f14,6d5,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: --
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: --
Specific Heat Capacity: --
First Ionization Potential: --
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
108 - Uno - Unniloctium
Atomic Weight: 265 (most stable) g/mol
Oxidation States: --
Boiling Point: --
Melting Point: --
Density: --
Electron Configuration: [Rn]5f14,6d6,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: --
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: --
Specific Heat Capacity: --
First Ionization Potential: --
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes
109 - Une - Unnilenium
Atomic Weight: 266 (most stable) g/mol
Oxidation States: --
Boiling Point: --
Melting Point: --
Density: --
Electron Configuration: [Rn]5f14,6d7,7s2
Acid/Base Properties: --
Crystal Structure: --
Electronegativity: --
Heat of Vaporization: --
Heat of Fusion: --
Electrical Conductivity: --
Thermal Conductivity: --
Specific Heat Capacity: --
First Ionization Potential: --
Atomic Volume: --
Atomic Radius: --
Covalent Radius: --
Synthetic: Yes