1+
Ammonium	NH4^+
Cesium	Cs^+
Copper(I)	Cu^+
Gold(I)	Au^+
Hydrogen	H^+
Lithium	Li^+
Potassium	K^+
Rubidium	Rb^+
Silver	Ag^+
Sodium	Na^+
Thallium(I)	Tl^+
2+
Barium	Ba^2+
Beryllium	Be^2+
Cadmium	Cd^2+
Calcium	Ca^2+
Chromium(II)	Cr^2+
Cobalt(II)	Co^2+
Copper(II)	Cu^2+
Germanium(II)	Ge^2+
Iron(II)	Fe^2+
Lead(II)	Pb^2+
Magnesium	Mg^2+
Manganese(II)	Mn^2+
Mercury(I)	Hg2^2+
Mercury(II)	Hg^2+
Nickel(II)	Ni^2+
Palladium(II)	Pd^2+
Platinum(II)	Pt^2+
Strontium	Sr^2+
Tin(II)	Sn^2+
Zinc	Zn^2+
3+
Aluminum	Al^3+
Antimony(III)	Sb^3+
Bismuth(III)	Bi^3+
Chromium(III)	Cr^3+
Gallium(III)	Ga^3+
Gold(III)	Au^3+
Indium(III)	In^3+
Iron(III)	Fe^3+
Scandium(III)	Sc^3+
Thallium(III)	Tl^3+
4+
Lead(IV)	Pb^4+
Molybdenum(IV)	Mo^4+
Palladium(IV)	Pd^4+
Platinum(IV)	Pt^4+
Tin(IV)	Sn^4+
Titanium(IV)	Ti^4+
Wolfram(IV) (tungsten)	W^4+
5+ or more
Molybdenum(VI)	Mo^6+
Vanadium(V)	V^5+
Wolfram(VI)	W^6+
1-
Acetate	C2H3O2^-
Bromide	Br^-
Chlorate	ClO3^-
Chloride	Cl^-
Chlorite	ClO2^-
Cyanide	CN^-
Cyanate	OCN^-
Dihydrogen phosphate	H2PO4^-
Fluoride	F^-
Hydride	H^-
Hydrogen carbonate	HCO3^-
Hydrogen sulfate	HSO4^-
Hydrogen sulfite	HSO3^-
Hydroxide	OH^-
Hypochlorite	ClO^-
Iodate	IO3^-
Iodide	I^-
Metaborate	BO2^-
Nitrate	NO3^-
Nitrite	NO2^-
Perchlorate	ClO4^-
Permanganate	MnO4^-
Tetrafluoroborate	BF4^-
Thiocyanate	SCN^-
2-
Carbonate	CO3^2-
Chromate	CrO4^2-
Dichromate	Cr2O7^2-
Hydrogen phosphate	HPO4^2-
Hydrosulfite (dithionite)	S2O4^2-
Manganate	MnO4^2-
Oxalate	C2O4^2-
Oxide	O^2-
Peroxide	O2^2-
Peroxydisulfate	S2O8^2-
Peroxymonosulfate	SO5^2-
Selenide	Se^2-
Sulfate	SO4^2-
Sulfite	SO3^2-
Telluride	Te^2-
Tetrathionate	S4O6^2-
Thiosulfate	S2O3^2-
3-
Arsenate	AsO4^3-
Arsenide	As^3-
Arsenite	AsO3^3-
Nitride	N^3-
Nitrilotriacetate (NTA)	N(CH2CO2)3^3-
Orthoborate	BO3^3-
Phosphate	PO4^3-
Phosphide	P^3-
Phosphite	PO3^3-
4- or more
Diborate	B2O5^4-
Ethylenediaminetetraacetate (EDTA)	C10H16N2O8^4+
Tetraborate	B4O9^6-
Triborate	B3O7^5-