Sodium

Synonyms: None

Symbol: Na

Atomic mass: 22.98976928 g/mol

Element number 11 in the Periodic Table. Valence number: 1. Electronegativity: 1.0

MP= 97.8 ^o C; BP= 881.4 ^o C; density: 971 kg/m³; CAS-number: 7740-23-5;

Sodium reacts vigorously with water by creation of sodium hydroxide and hydrogen gas, the heat formed during the reaction ignites the hydrogen gas. Sodium is an alkali metal and an important electrolyte in body fluids as blood plasma and intracellular liquids.

Freshly cut pieces of sodium

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