Ammonium
NH4 (+1)
Cesium
Cs (+1)
Copper (I)
Cu (+1)
Hydrogen
H (+1)
Lithium
Li (+1)
Potassium
K (+1)
Sodium
Na (+1)
Barium
Ba (+2)
Berylium
Be (+2)
Cadmium
Cd (+2)
Calcium
Ca (+2)
Chromum (II)
Cr (+2)
Cobalt (II)
Co (+2)
Copper (II)
Cu (+2)
Iron (II)
Fe (+2)
Lead (II)
Pb (+2)
Magnesium
Mg (+2)
Mercury (II)
Hg (+2)
Nickel (II)
Ni (+2)
Manganese (II)
Mn (+2)
Radium
Ra (+2)
Strontium
Sr (+2)
Tin (II)
Sn (+2)
Zinc
Zn (+2)