66 Dy
Lanthanide
Dysprosium
Used in EV motors.
Properties of Dysprosium
- Atomic number (Z)
- 66
- Symbol
- Dy
- Atomic mass
- 162.5 g/mol
- Category
- Lanthanide
- Group
- 3
- Period
- 6
- Electron configuration
- [Xe] 4f¹⁰ 6s²
- Electronegativity (Pauling)
- 1.22
- Atomic radius
- 228 pm
- First ionization energy
- 573 kJ/mol
- Melting point
- 1680 K (1406.8 °C)
- Boiling point
- 2840 K (2566.8 °C)
- Density
- 8.55 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1886