Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (Use the periodic table as necessary.)
Group Most Likely Ionic Charge # of Valence Electrons
I +1 ___
II +2 ___
III +3 ___
IV +4 or -4 ___
V -3 ___
VI -2 ___
VII -1 ___
VIII 0 ___