Holmium (Ho) — Element 67: Properties & Data | Aladdin Scientific
Holmium(Ho) — Element 67
Holmium (Ho) is a lanthanide with atomic number 67 and atomic mass 164.93. It has melting point 1747 K (1474 °C), boiling point 2973 K (2700 °C), density 8.8 g/cm³. It sits in period 6 of the periodic table and was discovered in 1878.
Key facts
| Atomic mass | 164.9303 u |
|---|---|
| Electron configuration | [Xe]6s2 4f11 |
| Oxidation states | +3 |
| Electronegativity (Pauling) | 1.23 |
| Atomic radius (van der Waals) | 216 pm |
| Ionization energy | 6.022 eV |
| Melting point | 1747 K |
| Boiling point | 2973 K |
| Density | 8.8 g/cm³ |
| Standard state | Solid |
| Year discovered | 1878 |
Preguntas frecuentes
What is the electron configuration of holmium?
The ground-state electron configuration of holmium is [Xe]6s2 4f11.
What group and period is holmium in?
Holmium (Ho) is in period 6 (lanthanide series) of the periodic table, classified as a lanthanide.
What is the melting point of holmium?
Holmium melts at 1747 K (1474 °C).
What is the standard state of holmium?
Holmium is a solid at standard temperature and pressure.
Related elements
Sobre estos datos: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .