Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Rhodium | |
| Electron Configuration | 2,8,18,16,1 |
| Electron Configuration | [Kr] 4d8 5s1 |
| Electronegativity | 2.28 |
| Enthalpy of Fusion | 21.55 kJ mol-1 |
| Enthalpy of Vaporisation | 494.3 kJ mol-1 |
| Heat Capacity | 24.98 J mol-1 K-1 |
| Thermal Conductivity | 150 W m-1 K-1 |
| Thermal Expansion | 8.2 μm m-1 K-1 |
| Magnetic ordering | No data |
| Electrical resistivity | 43.3 Ω m |
| Speed of sound | 4700 m s-1 |
| Young's modulus | 275 GPa |
| Shear modulus | 4700 GPa |
| Bulk modulus | 380 GPa |
| Poisson ratio | 0.26 |
| Mohs hardness | 6.0 |
| Vickers hardness | 1246 MPa |
| Brinell hardness | 1100 MPa |
| Atomic Radii |
|
| Atomic Radius
|
135 pm |
| Bohr Radius
|
173 pm |
| Covalent Radius
|
135 pm |
| Van der Waals
|
0 pm |
| Oxidation States |
|
| Main
|
Rh+3 |
| Other
|
Rh-1, Rh0, Rh+1, Rh+2, Rh+4, Rh+5, Rh+6 |
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
720 |
| M+ - M2+ |
1744 |
| M2+ - M3+ |
2997 |
| M3+ - M4+ |
4400 |
| M4+ - M5+ |
6500 |
| M5+ - M6+ |
8200 |
| M6+ - M7+ |
10100 |
| M7+ - M8+ |
12200 |
| M8+ - M9+ |
14200 |
| M9+ - M10+ |
22000 |