how many velence electrons does potassium,aluminum,bromine,phosphorus,fluorine,tin,silicon,astatine,xenon,indi?
Potassium has 1, Aluminum has 3, Bromide has 7, Phosphorus has 5, and I'm assuming fl meant fluoride which has 7When you look at the periodic table and see H, Be, B, C, N, O, F, and He, Hydrogen has one valence electron, and then each row goes up by oneWhen you go across though, exclude the element rows Sc-Zn, those are transition metals which have different valence electrons, normally 1-3.
