Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Nickel | |
| Electron Configuration | 2,8,16,2 |
| Electron Configuration | [Ar] 3d8 4s2 |
| Electronegativity | 1.91 |
| Enthalpy of Fusion | 17.6 kJ mol-1 |
| Enthalpy of Vaporisation | 374.8 kJ mol-1 |
| Heat Capacity | 26.07 J mol-1 K-1 |
| Thermal Conductivity | 90.9 W m-1 K-1 |
| Thermal Expansion | 13.4 μm m-1 K-1 |
| Magnetic ordering | Ferromagnetic |
| Electrical resistivity | 69.3 Ω m |
| Speed of sound | 4900 m s-1 |
| Young's modulus | 200 GPa |
| Shear modulus | 4900 GPa |
| Bulk modulus | 180 GPa |
| Poisson ratio | 0.31 |
| Mohs hardness | 4.0 |
| Vickers hardness | 638 MPa |
| Brinell hardness | 700 MPa |
| Atomic Radii |
|
| Atomic Radius
|
135 pm |
| Bohr Radius
|
149 pm |
| Covalent Radius
|
121 pm |
| Van der Waals
|
163 pm |
| Oxidation States |
|
| Main
|
Ni+2 |
| Other
|
Ni-1, Ni0, Ni+1, Ni+3, Ni+4, Ni+6 |
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
736.7 |
| M+ - M2+ |
1735.0 |
| M2+ - M3+ |
3393 |
| M3+ - M4+ |
5300 |
| M4+ - M5+ |
7280 |
| M5+ - M6+ |
10400 |
| M6+ - M7+ |
12800 |
| M7+ - M8+ |
15600 |
| M8+ - M9+ |
18600 |
| M9+ - M10+ |
21660 |