it has 19 electrons and 19 protons and 20 neutrons
the valency of potassium is 1
4
A potassium atom has 19 protons and 19 electrons. This is because the number of protons in an atom is equal to its atomic number, which for potassium is 19. Electrons in a neutral atom are equal to the number of protons.
Potassium has 1 valance electron.
Potassium has 19 protons, 19 electrons and 20 neutrons.
2
19.
4
An atom of potassium has 19 protons, 19 electrons, and typically 20 neutrons.
There are 19 protons,20 neutrons, and 19 electrons.
Potassium atom has 1 valence electron
Nitrogen14, has 7 protons, 7 electrons and 7 neutrons.