use your textbook; be responisble and don't leave your things next time.
Potassium has 1 valance electron.
Potassium has one valence electron. It belongs to Group 1 of the periodic table, which means it has one electron in its outermost energy level.
By looking at the group number you can tell how many valance electrons there are ex: Group 1= 1 valance electrons Group 2-12= 2 valance electrons Group 13= 3 valance electrons Group 14= 4 valance electrons Group 15= 5 valance electrons Group 16= 6 valance electrons Group 17= 7 valance electrons Group 18= 8 valance electrons
six valence electrons
one
Seven
4
Potassium has 19 electrons.
Take carbon as an example.Carbon, indicated by it's atomic number, has 6 electrons. The number at the top of carbon's group is the number of valance electrons. Carbon has 4 valance elections.6 total electrons - 4 valance electrons= 2 core electrons in carbon=====================(try another element yourself to see this process )
7 valence electrons
A neutral potassium atom has 19 electrons.
There are none.