Atomic number 56Ba
Barium
বেরিয়াম
- Alkaline earth metal
- Group 2
- Period 6
- Atomic mass 137.330 u
- Solid
- Electrons per shell
- 2, 8, 18, 18, 8, 2
- Electron configuration
- [Xe] 6s2
- Nucleus
- 56 protons, 82 neutrons
- Valence electrons
- 2
Speed1×
- Group
- 2
- Period
- 6
- Block
- s-block
- Category
- Alkaline earth metal
- State at 25 °C
- Solid