66Dy162.5
Dysprosium
Lanthanide · element 66 · f-block (shown below the main table)
Quick facts
| Symbol | Dy |
|---|---|
| Atomic number | 66 |
| Relative atomic mass | 162.5 |
| Category | Lanthanide |
| Position | f-block (shown below the main table) |
| State at 20 °C | Solid |
| Melting point | 1,407 °C |
| Boiling point | 2,567 °C |
| Density | 8.55 g/cm³ |
| Electronegativity | 1.22 |
| Electron configuration | [Xe] 4f10 6s2 |
About Dysprosium
Dysprosium has the symbol Dy and atomic number 66, which means every dysprosium atom has 66 protons in its nucleus and, in a neutral atom, 66 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 1,407 °C and boils at 2,567 °C.
Explore it
See where dysprosium sits, and drag the temperature slider to watch it melt and boil, on the interactive periodic table. Practise with quizzes on OmniEx.