| Atomic Number: | 67 |
| Element Symbol: | Ho |
| Element Name: | Holmium |
| Atomic Weight: | 164.93032 |
| Group Name: | Lanthanoid |
| Period Number: | 6 (lanthanoid) |
| Block: | f-block |
| Ground State Configuration: | [Xe] 4f11 6s2 |
| Ground State Level: | 4Io15/2 |
| Standard State: | Solid |
| Bond Length: | 348.6 |
| Atomic Radius Empirical: | 175 |
| Atomic Radius Calculated: | 226 |
| Electron Affinity: | 50 |
| First Ionization Energy: | 581.0 |
| Pauling Electronegativity: | 1.23 |
| Allred Rochow Electronegativity: | 1.10 |
| Density Of Solid: | 8795 |
| Molar Volume: | 18.74 |
| Velocity Of Sound: | 2760 |
| Youngs Modulus: | 65 |
| Rigidity Modulus: | 26 |
| Bulk Modulus: | 40 |
| Poissons Ratio: | 0.23 |
| Brinell Hardness: | 746 |
| Vickers Hardness: | 481 |
| Electrical Resistivity: | 94 |
| Melting Point: | 1461 |
| Boiling Point: | 2720 |
| Thermal Conductivity: | 16 |
| Coefficient Of Linear Expansion: | 11.2 |
| Enthalpy Of Fusion: | 17.0 |
| Enthalpy Of Vaporization: | 265 |
| Enthalpy Of Atmization: | 301 |
| Most Common Oxidation Numbers: | 3 |
| Color: | Silvery white |
| Classification: | Metallic |
| Discovered By: | J. L. Soret and Delafontaine |
| Discovered At: | Switzerland |
| Discovered When: | 1878 |
| Origin Of Name: | From the Greek word Holmia meaning Sweden |
Calculate the molecular weight of Holmium or molecular weight Ho.
Also see the full list of chemical elements and atomic weights.