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48
Cd
112.41
Cadmium
Transition metals · Group 12 · Period 5
Atomic properties
| Atomic number | 48 |
|---|---|
| Symbol | Cd |
| Standard atomic weight | 112.41 |
| Classification | Transition metals |
| Group | 12 |
| Period | 5 |
| Block | d-block |
| Electron configuration | [Kr] 4d10 5s2 |
| Electronegativity (Pauling) | 1.69 |
| Common oxidation states | +2 |
Physical properties
| Phase at 20 °C | Solid |
|---|---|
| Density | 8.65 g/cm³ |
| Melting point | 321.07 °C |
| Boiling point | 767 °C |
| Discovered | 1817 |
| CAS number | — |