Common Polyatomic Ions +1 CHARGE -1 CHARGE -2 CHARGE -3 CHARGE -4 CHARGE ion name ion name ion name ion name ion name NH4+ ammonium H2PO3- dihydrogen phosphite HPO32- hydrogen phosphite PO33- phosphite P2O74- pyrophosphate H3O+ hydronium H2PO4- dihydrogen phosphate HPO42- hydrogen phosphate PO43- phosphate Hg22+ mercury(I) HCO3- hydrogen carbonate CO32- carbonate PO23- hypophosphite HSO3- hydrogen sulfite SO32- sulfite AsO33- arsenite HSO4- hydrogen sulfate SO42- sulfate AsO43- arsenate NO2- nitrite S2O32- thiosulfate NO3- nitrate SiO32- silicate OH- hydroxide C22- carbide CH3COO- acetate C2O42- oxalate CrO2- chromite
Common Polyatomic Ions
Common Polyatomic Ions +1 CHARGE -1 CHARGE -2 CHARGE -3 CHARGE -4 CHARGE ion name ion name ion name ion name ion name NH4+ ammonium H2PO3- dihydrogen phosphite HPO32- hydrogen phosphite PO33- phosphite P2O74- pyrophosphate H3O+ hydronium H2PO4- dihydrogen phosphate HPO42- hydrogen phosphate PO43- phosphate Hg22+ mercury(I) HCO3- hydrogen carbonate CO32- carbonate PO23- hypophosphite HSO3- hydrogen sulfite SO32- sulfite AsO33- arsenite HSO4- hydrogen sulfate SO42- sulfate AsO43- arsenate NO2- nitrite S2O32- thiosulfate NO3- nitrate SiO32- silicate OH- hydroxide C22- carbide CH3COO- acetate C2O42- oxalate CrO2- chromite
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