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Sodium (Na) — Element 11

A concise reference for Sodium, element 11.

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.

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