Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Holmium | |
| Electron Configuration | 2,8,18,29,8,2 |
| Electron Configuration | [Xe]] 4f11 6s2 |
| Electronegativity | 1.23 |
| Enthalpy of Fusion | 17.2 kJ mol-1 |
| Enthalpy of Vaporisation | 303 kJ mol-1 |
| Heat Capacity | 27.15 J mol-1 K-1 |
| Thermal Conductivity | 16.2 W m-1 K-1 |
| Thermal Expansion | 11.2 μm m-1 K-1 |
| Magnetic ordering | No data |
| Electrical resistivity | 814 Ω m |
| Speed of sound | 2760 m s-1 |
| Young's modulus | 64.8 GPa |
| Shear modulus | 2760 GPa |
| Bulk modulus | 40.2 GPa |
| Poisson ratio | 0.231 |
| Vickers hardness | 481 MPa |
| Brinell hardness | 746 MPa |
| Atomic Radii |
|
| Atomic Radius
|
175 pm |
| Bohr Radius
|
0 pm |
| Covalent Radius
|
0 pm |
| Van der Waals
|
0 pm |
| Oxidation States |
|
| Main
|
Ho+3 |
| Other
|
|
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
580.7 |
| M+ - M2+ |
1139 |
| M2+ - M3+ |
2204 |
| M3+ - M4+ |
4100 |