Overview |
Name | Cadmium |
Symbol | Cd |
Atomic Number | 48 |
Atomic Weight | 112.411 |
Density | 8.65 g/cm3 |
Melting Point | 321.07 °C |
Boiling Point | 767 °C |
Thermal properties |
Phase | Solid |
Melting Point | 321.07 °C |
Boiling Point | 767 °C |
Absolute Melting Point | 594.22 K |
Absolute Boiling Point | 1040 K |
Heat of Fusion | 6.3 kJ/mol |
Heat of Vaporization | 100 kJ/mol |
Heat of Combustion | N/A |
Specific Heat | 230 J/(kg K)[note] |
Thermal Conductivity | 97 W/(m K) |
Thermal Expansion | 0.0000308 K-1 |
Bulk physical properties |
Density | 8.65 g/cm3 |
Density (Liquid) | 7.996 g/cm3 |
Molar Volume | 0.000012995 |
Brinell Hardness | 203 MPa |
Mohs Hardness | 2 MPa |
Bulk Modulus | 42 GPa |
Shear Modulus | 19 GPa |
Young Modulus | 50 GPa |
Poisson Ratio | 0.3 |
Speed of Sound | 2310 m/s |
Thermal Conductivity | 97 W/(m K) |
Thermal Expansion | 0.0000308 K-1 |
Reactivity |
Valence | 2 |
Electronegativity | 1.69 |
ElectronAffinity | 0 kJ/mol |
Ionization Energies | 867.8, 1631.4, 3616 kJ/mol |
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Health and Safety |
Autoignition Point | 250 °C |
Flashpoint | N/A |
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Classifications |
Alternate Names | None |
Nams of Allotropes | None |
Block | d |
Group | 12 |
Period | 5 |
Electron Configuration | [Kr]4d105s2 |
Color | Silver |
Discovery | |
Gas phase | N/A |
CAS Number | CAS7440-43-9 |
Electrical properties |
Electrical Type | Conductor |
Electrical Conductivity | 1.4×107 S/m |
Resistivity | 7×10-8 m Ω |
Superconducting Point | 0.517 |
Magnetic properties |
Magnetic Type | Diamagnetic |
Mass Magnetic Susceptibility | -2.3×10-9 |
Molar Magnetic Susceptibility | -2.59×10-10 |
Volume Magnetic Susceptibility | -0.0000199 |
Abundances |
% in Universe | 2×10-7% |
% in Sun | 6×10-7% |
% in Meteorites | 0.000044% |
% in Earth's Crust | 0.000015% |
% in Oceans | 5×10-9% |
% in Humans | 0.00007% |
Atomic dimensions and structure |
Atomic Radius | 161 pm |
Covalent Radius | 148 pm |
Van der Waals Radius | 158 pm |
Crystal Structure | Simple Hexagonal |
Lattice Angles | |
Lattice Constants | 297.94, 297.94, 561.86 pm |
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Space Group Name | P63/mmc |
Space Group Number | 194 |
Nuclear Properties |
Half-Life | Stable |
Lifetime | Stable |
Isotopic Abundances | 106Cd | 1.25% | 108Cd | 0.89% | 110Cd | 12.49% | 111Cd | 12.8% | 112Cd | 24.13% | 113Cd | 12.22% | 114Cd | 28.73% | 116Cd | 7.49% |
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