Soft, silver and violently eager: sodium reacts with water fast enough to ignite the hydrogen it releases.
- Atomic number
- 11
- Atomic mass
- 22.99 u
- Phase
- Solid
- Electron configuration
- [Ne] 3s¹
- Melting point
- 370.87 K · 97.7 °C
- Boiling point
- 1,156 K · 882.9 °C
- Density
- 0.968 g/cm³
- Electronegativity
- 0.93
- Period / Group
- 3 / 1
- Discovery year
- 1807