Nickel
Transition metal| Atomic number | 28 |
|---|---|
| Category | Transition metal |
| Atomic mass | 58.693 |
| Electron configuration | [Ar]3d⁸ 4s² |
| Oxidation states | +2, +3 |
| Electronegativity | 1.91 |
| Melting point | 1,455 °C |
| Boiling point | 2,913 °C |
| Density | 8.908 g/cm³ |
| Crystal structure | Face-centred cubic |
| Group | 10 |
| Period | 4 |
| Block | d |
| Discovered | 1,751 |
| Crustal abundance | 84 ppm |
