top of page

Potassium

Chemical symbol: K

Atomic number: 19

Atomic mass: 39.098

Group: 1 (Hydrogen and Alkali metals)

Period: 4

Element category: Alkali metals

Block: s-block

Number of protons: 19

Number of electrons: 19

Number of neutrons (in the most common isotope): 20

Sources:

  • Knowledge Encyclopedia (book)

  • SCIENCIA (book)

bottom of page