Polyatomic Ions and old element names

Acetate

(C2H3O2)-1

Amonnium

(NH4)+1

Hydroxide

(OH)-1

Carbonate

(CO3)-2

Perchlorate

(ClO4)-1

Chlorate

(ClO3)-1

Chlorite

(ClO2)-1

Hypochlorite

(ClO)-1

Nitrate

(NO3)-1

Nitrite

(NO2)-1

Phosphate

(PO4)-3

Phosphite

(PO3)-3

Sulfate

(SO4)-2

Sulfite

(SO3)-2

Chromium (III)

Chromic

Chromium (II)

Chromous

Cobaltic

Cobalt (III)

Cobaltous

Cobalt (II)

Cupric

Copper (II)

Cuprous

Copper (I)

Ferric

Iron (III)

Ferrous

Iron (II)

Plumbic

Lead (IV)

Plumbous

Lead (II)

Stannic

Tin (IV)

Stannous

Tin (II)