67Ho164.93
Holmium
Lanthanide · element 67 · f-block (shown below the main table)
Quick facts
| Symbol | Ho |
|---|---|
| Atomic number | 67 |
| Relative atomic mass | 164.93 |
| Category | Lanthanide |
| Position | f-block (shown below the main table) |
| State at 20 °C | Solid |
| Melting point | 1,461 °C |
| Boiling point | 2,720 °C |
| Density | 8.8 g/cm³ |
| Electronegativity | 1.23 |
| Electron configuration | [Xe] 4f11 6s2 |
About Holmium
Holmium has the symbol Ho and atomic number 67, which means every holmium atom has 67 protons in its nucleus and, in a neutral atom, 67 electrons. At room temperature it is a solid.
Lanthanides are the first row of the f-block. Many are used in strong magnets, screens and lasers.
It melts at 1,461 °C and boils at 2,720 °C.
Explore it
See where holmium sits, and drag the temperature slider to watch it melt and boil, on the interactive periodic table. Practise with quizzes on OmniEx.