Names, formulas and charges of the most common ions

Names, formulas and charges
of the most common ions

Positive Ions (cations)
Aluminum	Al 3+
Ammonium	NH4 +
Antimony (III)	Sb3+
Antimony (V)	Sb5+
Arsenic (III)	As3+
Arsenic (V)	As5+
Barium	Ba2+
Beryllium	Be2+
Bismuth (III)	Bi3+
Bismuth (V)	Bi5+
Cadmium	Cd2+
Calcium	Ca 2+
Chromium (II)	Cr 2+
Chromium (III)	Cr 3+
Cobalt (II)	Co 2+
Cobalt (III)	Co 3+
Copper (I)	Cu +
Copper (II)	Cu 2+
Hydrogen, hydronium **	H + , H3O+
Iron (II)	Fe 2+
Iron (III)	Fe 3+
Lead (II)	Pb 2+
Lead (IV)	Pb 4+
Lithium	Li +
Magnesium	Mg 2+
Manganese (II)	Mn 2+
Manganese (IV)	Mn 4+
Mercury (I)*	Hg2 2+
Mercury (II)	Hg 2+
Nickel	Ni 2+
Oxonium **	H3O +
Potassium	K +
Scandium	Sc 2+
Silver	Ag +
Sodium	Na +
Strontium	Sr 2+
Tin (II)	Sn 2+
Tin (IV)	Sn 4+
Zinc	Zn 2+
* Mercury (I) ions occur as groups of 2, its symbol is Hg2and its total charge is +2.
** The use of "Oxonium" is recommanded instead of hydronium or hydroxonium.

Negative Ions (anions)
Acetate	CH3COO-
Borate	BO3 3-
Bromate	BrO3 -
Bromide	Br -
Carbonate	CO3 2-
Chlorate	ClO3 -
Chloride	Cl -
Chlorite	ClO2-
Chromate	CrO42-
Cyanamide	CN22-
Cyanide	CN-
Dichromate	Cr2O72-
Dihydrogen phosphate	H2PO4-
Ferricyanide	Fe(CN)63-
Ferrocyanide	Fe(CN)64-
Fluoride	F -
Hydrogen carbonate	HCO3-
Hydrogen phosphate	HPO42-
Hydrogen sulfate	HSO4-
Hydrogen sulfide	HS-
Hydrogen sulfite	HSO3-
Hydride	H-
Hydroxide	OH-
Hypochlorite	ClO-
Iodate	IO3 -
Iodide	I -
Nitrate	NO3-
Nitride	N3-
Nitrite	NO2-
Oxalate	C2O42-
Oxide	O2-
Perchlorate	ClO4-
Permanganate	MnO4-
Peroxide	O22-
Phosphate	PO43-
Phosphide	P3-
Phosphite	PO33-
Silicate	SiO44-
Stannate	SnO32-
Stannite	SnO22-
Sulfate	SO42-
Sulfide	S2-
Sulfite	SO32-
Tartrate	C4H4O62-
Thiocynate	SCN-