Ho
Holmium Symbol (Ho)
Holmium is element 67 of the periodic table. Copy its symbol Ho and see its atomic weight, electron configuration and physical properties.
What does Ho mean?
Ho is the chemical symbol for holmium, element number 67 in the periodic table. Holmium is a lanthanide in the f-block, period 6. It is a solid at room temperature and was discovered in 1878.
Codes and properties
| Chemical symbol | Ho |
|---|---|
| Atomic number (Z) | 67 |
| Atomic weight (PubChem) | 164.93033 |
| Group / period | f-block / 6 |
| Element category | lanthanide |
| Electron configuration | [Xe]6s² 4f¹¹ |
| State at 20 °C | Solid |
| Oxidation states | +3 |
| Electronegativity (Pauling) | 1.23 |
| Melting point | 1747 K (1473.85 °C) |
| Boiling point | 2973 K (2699.85 °C) |
| Density | 8.80 g/cm³ |
| Discovered | 1878 |
How to type Ho
- Plain text: type
Ho— element symbols are ordinary Latin letters, with the first letter capitalised and the second lowercase. - Subscripts in formulas: use Unicode subscript digits (₀₁₂₃₄₅₆₇₈₉) for formulas such as H₂O — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{Ho}in math mode, or use the mhchem package:\ce{Ho}. - HTML:
Ho; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for holmium?
The chemical symbol for holmium is Ho.
What is the atomic number of holmium?
Holmium has atomic number 67, meaning each atom has 67 protons.
What is the electron configuration of holmium?
The ground-state electron configuration of holmium is [Xe]6s² 4f¹¹.
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Reference: Holmium on PubChem (NIH)