In what group of the periodic table is the element with the following configuration [Ar] 4s2 3d10 4p3

Answer 1

the number of electrons is 15 greater than Ar
... so the atomic number is also

Answer 2

I supposed the valence electron is 3 so it should be in the group 13 or 3A

Answer 3

you might want to find the element and check

Answer 4

Electrons feel an empty shell before they pair up with another electron; maybe that should help you figure out the correct group. You are close but not quite right.

Answer 5

If I look at the exact element it goes under group 5A. Then if I consider the valence electron it will be under group 3A. Im still confused.