Element overview
Sodium (Na) is element 11 with a listed atomic mass of 22.98976928 u. It is in group 1 and period 3. Its category is alkali metal.
Atomic properties
Electron configuration: [Ne] 3s1. Electronegativity: 0.93. Common oxidation states: +1.
Physical properties
Density: 0.968; melting point: 370.87; boiling point: 1156. Values depend on conditions, phase and source.