caesium
Cs+
copper(I)
Cu+
gold(I)
Au+
lithium
Li+
Potassium
K+
Rubidium
Rb+
silver
Ag+
sodium
Na+
Barium
Ba2+
cadmium(II)
Cd2+
calcium
Ca2+
Cobalt
Co2+
Copper
Cu2+
iron(II)
Fe2+
lead(II)
Pb2+
magnesium
Mg2+
manganese(II)
Mn2+
mercury(II)
Hg2+
nickel
Ni2+
strontium
Sr2+
tin(II)
Sn2+
zinc
Zn2+
aluminium
Al3+
chromium(III)
Cr2+