← Mrs. Heckman's polyatomic ion list Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All carbonate CO3 2- sulfate SO4 2- sulfite SO3 2- nitrate NO3 - nitrite NO2 - phosphate PO4 3- hydroxide OH - chromate CrO4 2- dichromate Cr2O7 2- chlorate ClO3 - acetate C2H3O2 - iodate IO3 - permanganate MnO4 - thiosulfate S2O3 2- chlorite ClO2 - ammonium NH4 +