+2 -2
Mg O
C O
+1 -2
Li2 O
+2 -1
Ba Cl2
+3 -1
Fe Cl3
Fe Cl2
Hg Cl2
K2 S
+3 -2
Al2 S3
+2 -3
Ca3 N2
+1 -1
K F
+2 -2
Mg O
+2 -2
C O
+1 -2
Li2 O
+2 -1
Ba Cl2
+3 -1
Fe Cl3
+2 -1
Fe Cl2
+2 -1
Hg Cl2
+1 -2
K2 S
+3 -2
Al2 S3
+2 -3
Ca3 N2
+1 -1
K F