Atomic number 68Er
Erbium
আরবিয়াম
- Lanthanide
- Period 6
- Atomic mass 167.260 u
- Solid
- Electrons per shell
- 2, 8, 18, 30, 8, 2
- Electron configuration
- [Xe] 4f12 6s2
- Nucleus
- 68 protons, 98 neutrons
Speed1×
- Group
- None (f-block)
- Period
- 6
- Block
- f-block
- Category
- Lanthanide
- State at 25 °C
- Solid