Question

How can you determine the number of valence electrons in atom without drawing a Bohr model?

Answer 1

You can find the number of VALENCE ELECTRONS by using the periodic table, count the number of how many times you go right from the horizontal layer I hope you know what i'm talking about because i'm bad at explaining

Answer 2

using your periodic table if you look at it 3-11 are tansition metals so the horizontal Group Number will help if the group number has to digits just remove the one so if it were to be 13, the valence would be 3, if it were 14 the valence would be ,4 if it were 15, the valence would be 5, if it were 16 the valence would be 6, if it were 17 the valence would be 7 if it were group 18 the valence would be 8 so if anymore help needed to explain hit me up