• Na is the element symbol

Physical properties

Atomic mass: 22.9897

Density: 0.97 g/L

Group: Alkali metals

Electrons: [Ne] 3s1

Melting point: 371 K

Boiling point: 1156 K

Discovered: 1807

is a chemical element with symbol Na (from Latin: natrium) and atomic number 11. It is a soft, silver-white, highly reactive metal and is a member of the alkali metals; its only stable isotope is 23Na.


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