Hydrogen (H)
+1
Potassium (K)
+1
Lithium (Li)
+1
Cesium (Cs)
+1
Barium (Ba)
+2
Calcium (Ca)
+2
Beryllium (Be)
+2
Magnesium (Mg)
+2
Nickel (Ni)
+2
Strontium (Sr)
+2
Cadmium (Cd)
+2
Zinc (Zn)
+2
Carbon (C)
+4
Silicon (Si)
+4
Phosphide (P)
-3
Phosphite (PO3)
-3
Phosphate (PO4)
-3
Nitride (N)
-3
Carbide (C)
-4
Copper (Cuprous) (Cu)
+1
Copper (Cupric) (Cu)
+2
Mercury (Mercurous) (Hg2)
+1
Mercury (Mercuric) (Hg)
+2
Iron (Ferrous) (Fe)
+2