Reference Sheet Common Polyatomic Ions 1- charge 2- charge 3- charge 1+ charge Formula Name Formula Name Formula Name Formula Name Dihydrogen phosphate Phosphite Ammonium H2PO4- HPO42- Hydrogen phosphate PO33- NH4+ C2H3O2- Acetate C2O42- Oxalate Phosphate PO43- HSO3- Hydrogen sulfite Sulfite Arsenate SO32- HSO4- Sulfate Hydrogen sulfate SO42- HCO3- Carbonate Hydrogen carbonate CO32- NO2- Chromate CrO42- Nitrite NO3- Cr2O72- Dichromate Nitrate CN- SiO32- Silicate Cyanide OH- O22- Peroxide MnO4- Hydroxide S2O32- Thiosulfate ClO- Permanganate SeO42- Selenate ClO2- Hypochlorite ClO3- Tartrate Chlorite ClO4- Chlorate NH2- Perchlorate IO4- IO3- Amide BrO3- Periodate SCN- Iodate Bromate Thiocyanate of Common Metal Ions with More than One Ionic Charge Nonmetals Activity Series of Metals Lithium Potassium Calcium Sodium Magnesium Aluminum Zinc Chromium Iron Nickel Lead Hydrogen Tin Copper Mercury Silver Platinum Gold NO31- C2H3O21- NH4+ H+, Li+, Na+, K+, Rb+, Cs+, Fr+ (Group I elements) Except with Cl1-, Br1-, I1- Ag+, Hg22+, Pb2+, Cu+, Ti+ Except with Metals from aluminum to lead can replace hydrogen from acids only. SO42- Ba2+, Pb2+, Ca2+, Ag+, Ra2+
Common Polyatomic Ions Reference Sheet 1- charge 2- charge 3- charge 1+ charge Formula Name Formula Name Formula Name Formula Name H2PO4- C2H3O2- HSO3- HSO4- HCO3- NO2- NO3- CN- OH- MnO4- ClO- ClO2- ClO3- ClO4- NH2- IO4- IO3- BrO3- SCN- Dihydrogen phosphate Acetate Hydrogen sulfite Hydrogen sulfate Hydrogen carbonate Nitrite Nitrate Cyanide Hydroxide Permanganate Hypochlorite Chlorite Chlorate Perchlorate Amide Periodate Iodate Bromate Thiocyanate HPO42- C2O42- SO32- SO42- CO32- CrO42- Cr2O72- SiO32- O22- S2O32- SeO42- Hydrogen phosphate Oxalate Sulfite Sulfate Carbonate Chromate Dichromate Silicate Peroxide Thiosulfate Selenate Tartrate PO33- PO43- Phosphite Phosphate Arsenate NH4+ Ammonium Common Metal Ions with More than One Ionic Charge Activity Series of Metals Lithium Potassium Calcium Sodium Magnesium Aluminum Zinc Chromium Iron Nickel Lead Hydrogen Tin Copper Mercury Silver Platinum Gold of Nonmetals NO31- C2H3O21- NH4+ H+, Li+, Na+, K+, Rb+, Cs+, Fr+ (Group I elements) Cl1-, Br1-, I1- Except with Ag+, Hg22+, Pb2+, Cu+, Ti+ SO42- Except with Ba2+, Pb2+, Ca2+, Ag+, Ra2+ Metals from aluminum to lead can replace hydrogen from acids only.
Polyatomic-ions-Reference-sheet.docx