List of Common Ions - Chemistry

1 List of Common ions Monatomic Cations Polyatomic Cations +. 1+ H hydrogen NH4+ ammonium Li+ lithium H3O+ hydronium Na+ sodium K+ potassium Polyatomic Anions Rb+ rubidium OH- hydroxide Cs+ cesium CN- cyanide Ag+ silver O22- peroxide 2+ Mg2+ magnesium CO32- carbonate Ca2+ calcium C2O42- oxalate Sr2+ strontium NO2- nitrite Ba2+ barium NO3- nitrate Zn2+ zinc PO33- phosphite Cd2+ cadmium PO43- phosphate SO32- sulfite 3+ Al3+ aluminum SO42- sulfate Bi3+ bismuth S2O32- thiosulfate ClO- hypochlorite Monatomic Anions ClO2- chlorite 1- H- hydride ClO3- chlorate F- fluoride ClO4- perchlorate Cl- chloride CH3 COO- Br- bromide or C2H3O2- acetate I- iodide AsO43- arsenate BO33- borate 2- O2- oxide SiO32- silicate S2- sulfide MnO4- permanganate CrO42- chromate 3- N3- nitride Cr2O72- dichromate P3- phosphide CHO2- formate hydrogen carbonate 4- HCO3- or bicarbonate 4- C (C22-) carbide hydrogen sulfite HSO3- or bisulfite hydrogen sulfate HSO4- or bisulfate HPO42- hydrogen phosphate H2PO4- dihydrogen phosphate Metals with more than one ion Classical (ous, ic).

2 Element Ion Stock system System Chromium Cr2+ chromium(II) chromous Cr3+ chromium(III) chromic Cobalt Co2+ cobalt(II) cobaltous Co3+ cobalt(III) cobaltic Copper Cu+ copper(I) cuprous Cu2+ copper(II) cupric Iron Fe2+ iron(II) ferrous Fe3+ iron(III) ferric Lead Pb2+ lead(II) plumbous Pb4+ lead(IV) plumbic Manganese Mn2+ manganese(II) manganous Mn3+ manganese(III) manganic Mn4+ manganese(IV) - Mercury Hg22+ mercury(I) mercurous Hg2+ mercury(II) mercuric Tin Sn2+ tin(II) stannous Sn4+ tin(IV) stannic