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Sodium

Chemical symbol: Na

Atomic number: 11

Atomic mass: 22.990

Group: 1 (Alkali metals)

Period: 3

Block: s-block

Number of protons: 11

Number of electrons: 11

Number of neutrons (in the most common isotope): 12

Sources:

  • Knowledge Encyclopedia (book)

  • SCIENCIA (book)

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