the valency of potassium is 1
4
2
Potassium atom has 1 valence electron
4
Valence electrons are those in the outermost shell of the atom.
it has 19 electrons and 19 protons and 20 neutrons
Potassium has 1 valance electron.
There is only one valance electron in potassium.
one
One valence electron
Both lithium and potassium are in Group I of the Periodic Table, so they both have one valence electron.
A neutral potassium atom has 19 electrons in total and 1 valence electron.