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Polyatomic Ions

Polyatomics and Charges of other elements

NameSign and Charge
Charge of Alkali Metals positive1
Charge of Alkaline Earth Metals positive 2
Iron Fe positive 2 & 3
Nickel Ni positive 2 & 3
Copper Cu positive 1 & 2
Zinc Zn positive 2
Silver Ag positive 1
Gold Au positive 1 & 3
Boron B positive 3
Aluminium Al positive 3
Nitride N negative 3
Phosphide P negative 3
Oxide O negative 2
Sulfide S negative 2
Selenide Se negative 2
Halogens negative 1
Acetate C2H302 negative 1
Chlorate ClO3 negative 1
Chlorite ClO2 negative 1
Hydroxide OH negative 1
Hypochlorite ClO negative 1
Nitrate NO3 negative 1
Nitrite NO2 negative 1
Perchlorate ClO4 negative 1
Permanganate MnO4 negative 1
Bicarbonate HCO3 negative 1
Carbonate CO3 negative 2
Chromate CrO4 negative 2
Dichromate Cr2O7 negative 2
Peroxide O2 negative 2
Sulfate SO4 negative 2
Sulfite SO3 negative 2
Phosphate PO4 negative 3
Ammonium NH4 positive 1