| Element | Holmium | Symbol | Ho |
| Atomic Number | 67 | Molar Mass | 164.93 g mol-1 |
| Electron Configuration | [Xe]4f116s2 | Normal State | solid metal |
| Density @STP | 8.8 g cm-3 | Melting Point | 1474oC |
| Boiling Point | 2700oC | Stable Isotopes | 165Ho |
| Atomic Radius | 177 pm | Ionic Radius | 89 (3+) pm |
| Electronegativity (Pauling) | 1.23 | Ionization Energy (1st) | 581 kJ mol-1 |
| Ionization Energy (2nd) | 1139 kJ mol-1 | Ionization Energy (3rd) | 2204 kJ mol-1 |
| Molar Heat Capacity | 27.2 J K-1mol-1 | Standard Molar Entropy | 75.3 J K-1mol-1 |
| Enthalpy of Fusion | 17.2 kJ mol-1 | Enthalpy of Vapourization | 251 kJ mol-1 |