Sodium (Na) is a chemical element belonging to the category Alkali metal, with atomic number 11 and atomic mass 22.9900 u.
Identity
- Name: Sodium
- Symbol: Na
- Atomic number: 11
- Atomic mass: 22.9900 u
Position in the periodic table
- Group: 1
- Period: 3
- Category: Alkali metal
Physico-chemical properties
- Standard state: Solid
- Melting point: 97.8°C
- Density: 0.97 g/cm³
- Electron configuration: [Ne] 3s¹
Scientific description
Sodium is a chemical element with symbol Na and atomic number 11. It belongs to the alkali metals, group 1 and period 3. Standard atomic mass: 22.9900 u.