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Phosphorus

Chemical symbol: P

Atomic number: 15

Atomic mass: 30.974

Group: 15 (The nitrogen group)

Period: 3

Block: p-block

Number of protons: 15

Number of electrons: 15

Number of neutrons (in the most common isotope): 16

Sources:

  • Knowledge Encyclopedia (book)

  • SCIENCIA (book)

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