Ion Formation
Elements in this group have 5 valence electrons
group 15
Strontium chloride
SrCl2
CuCl2
NiCl2
Nickel (II) Chloride
P
-3
Elements in this group have a charge of 2+
Group 2
Potassium sulfide
K2S
Iron (III) Oxide
Fe2O3
Iron (III) Chloride
FeCl3
Al
+3
Elements in this group have 3 valence electrons
group 13
Beryllium oxide
BeO
Titanium (IV) Oxide
TiO2
Zinc (II) Bromide
ZnBr3
Ar
0/none
Elements in this group do not form ions easily
group 18
Aluminum sulfide
Al2O3
Silver Chloride
AgCl
Ca
+2
This group of elements forms no charge
group 18
Potassium Nitride
K3N
Manganese (VII) Oxide
Mn2O7
Scandium (III) Nitride
ScN
Mg