Sodium

Type: Concept

As of November 2026, Sodium has been mentioned in one podcast episode on PowerfulJRE (Jun 2024). Discussed as an essential nutrient often deficient in diets, contrary to popular belief.

Sodium is a chemical element; it has symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is 23Na. The free metal does not occur in nature and must be prepared from compounds. Sodium is the sixth–most abundant element in the Earth's crust and exists in numerous minerals such as feldspars, sodalite, and halite (NaCl). Many salts of sodium are highly water-soluble: sodium ions