NO. 011Alkali

Na

Sodium

Sodium is a soft, silvery Alkali that reacts violently with water and air. It plays a vital role in biological processes such as nerve transmission and fluid balance. Industrially, sodium compounds are widely used in food, chemicals, and manufacturing.

Sodium

Technical Specifications

Atomic Mass22.99 u
Density0.971 g/cm³
Melting Point370.9 K
Boiling Point1156 K
Atomic Radius186 pm
Electronegativity0.93
Ionization Energy496 kJ/mol
Electron Affinity52.8 kJ/mol
Bonding TypeMetallic
Oxidation States1
Acid/BaseBasic
ReactivityHigh

Electron Configuration

[Ne] 3s1

Discovered ByHumphry Davy
Year1807

Known Isotopes

Sodium-23