What do elements in a row have in common the same number of

Last updated: 5/2/2023

What do elements in a row have in common the same number of electron shells Every element in Period 1 1st row has 1 shell for its electron H He All of the elements in period 2 have two shells for their electrons It continues like this all the way down the table 151 I 80 And You ve got your Column group families What do elements in a group have in common same number of valence electrons electrons in the outer shel Every element in group 1 1st column has 1 valence electron Every element in group 2 has 2 valence electrons In fact if you know the group s number you automatically know how many valence electrons it has Metals Metalloids Nonmetals Metals 10 11 12 Nonmetals 13 14 15 16 17 18