Cadmium |
Symbol | Cd |
---|---|
Latin name | Cadmium |
Atomic number | 48 |
Period | 5 |
Element category | Transition elements |
Relative atomic mass | 112.411 |
Group | II.B |
Electronegativity | 1.7 |
Oxidation numbers | 2 |
Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 |
Density [g/cm3] | 8.65 |
State | Solid |
Melting point [°C] | 321.108 |
Boiling point [°C] | 765 |
Atomic radius [pm] | 161 |
Covalent radius [pm] | 148 |
Thermal conductivity [W m-1K-1] | 96.8 |
Heat capacity [J K-1g-1] | 0.233 |
Discovery | 1817 |
Hardness [Mohs scale] | 2.0 |
Brinell hardness [MPa] | 203 |
Young's modulus [GPa] | 50 |
Electrical conductivity [S m-1] | 4.4 · 107 |
Shear modulus [GPa] | 19 |
1.st ionization energy [eV] | 8.9937 |
2.nd ionization energy [eV] | 16.908 |
3.rd ionization energy [eV] | 37.48 |
Stable isotopes | 5 |
Unstable isotopes | 14 |