There are 27 valance electrons.
2 valance electrons
Iodine has 7 valance electrons
By looking at the group number you can tell how many valance electrons there are ex: Group 1= 1 valance electrons Group 2-12= 2 valance electrons Group 13= 3 valance electrons Group 14= 4 valance electrons Group 15= 5 valance electrons Group 16= 6 valance electrons Group 17= 7 valance electrons Group 18= 8 valance electrons
They have different numbers of valance electrons
6 valence electrons
6 valence electrons
1
three
there are six
Two.
hundereds
2