a) valence level 4; number of valence electrons 5 ?b) valence level 3; number of valence electrons 5 ?c) valence level 3; number of valence electrons 3 ?d) valence level 4; number of valence electrons 3 ?e) valence level 4; number of valence electrons 2 ?
aAs- Arsenic bP- Phosphorus cAl- Aluminum dGa- Gallium eCa- Calcium How I got these answersGroups number of valence electrons with the exception of groups 3-12 which are the transition metals Group 1 have one valence electron Group 2- have two valence electrons Groups 3-12 vary, these are the transition metals Group 13 have 3 valence electrons Group 14 have 4 valence electrons Group 15 have 5 valence electrons Group 16 have 6 valence electrons Group 17 have 7 valence electrons Group 18 have a full outer layer, all have 8 valence electrons except Helium which has only 2 which makes it's outer most level fullPeriods Valence Levels (how many rings are around the element filled with electronsHope this helps you understand how to do these
