Atomic number 3Li
Lithium
লিথিয়াম
- Alkali metal
- Group 1
- Period 2
- Atomic mass 6.940 u
- Solid
- Electrons per shell
- 2, 1
- Electron configuration
- 1s2 2s1
- Nucleus
- 3 protons, 4 neutrons
- Valence electrons
- 1
Speed1×
- Group
- 1
- Period
- 2
- Block
- s-block
- Category
- Alkali metal
- State at 25 °C
- Solid