University:
College
Course:
College Chemistry
Academic year:

2022
Views:

307

Pages:

2
Author:

5CelestialChronicle

Common Polyatomic Ions (Alphabetical order by ion name) NOTE: -ite ending means one less oxygen than the -ate form. Ion Name Ion Symbol Ion Name Ion Symbol Ion Name Ion Symbol Ion Name Ion Symbol Acetate CH 3 CO 2 or CH 3 COO- Dichromate Cr 2 O 7 2- Hypobromite BrO- Perrhenate ReO 4 - + Dihydrogen Phosphate H 2 PO 4 - Hypochlorite ClO- Phosphate PO 4 3- Dihydrogen Phosphite H 2 PO 3 - Hypoiodite IO- Phosphite PO 3 3- 3- Ammonium NH 4 Arsenate AsO 4 Arsenite AsO 3 3- Dithionate S 2 O 6 2- Iodate IO 3 - Plumbate PbO 3 2- Azide N3 - Dithionite S2O4 2- Iodite IO 2 - Plumbite PbO 2 2- 2- Ferricyanide Fe(CN) 6 3- Isocyanate NCO- Rhenate ReO 4 2- Bromate BrO 3 - Ferrocyanide Fe(CN) 6 4- Manganate MnO 4 2- Selenate SeO 4 2- Bromite BrO 2 - Fulminate CNO - Nitrate NO 3 - Selenite SeO 3 2- 2- Hydrazide N2H3- Nitrite NO 2 - Silicate SiO 3 2- Chlorate ClO 3 - Hydrogen arsenate HAsO 4 2- Oxalate C 2 O 4 2- Stannate SnO 3 2- Chlorite ClO 2 - Hydrogen carbonate HCO 3 - Ozonide O3 Stannite SnO 2 2- Hydrogen Phosphate HPO 4 2- Perbromate BrO 4 - Sulfate SO 4 2- Borate Carbonate Chromate BO 3 CO 3 CrO 4 2- - Chromite CrO 2 - Hydrogen Phosphite HPO 3 2- Perchlorate ClO 4 - Sulfite SO 3 2- Citrate C 6 H 5 O 7 3- Hydrogen Sulfate HSO 4 - Periodate IO 4 - Superoxide O2- Cyanate OCN - Hydrogen Sulfite HSO 3 - Permanganate MnO 4 - Thiocyanate SCN - Cyanide CN - Hydroxide OH- Peroxide O 2 2- Thiosulfate S 2 O 3 2- Tungstate WO 4 2- PREFIXES: per- = one more oxygen than -ate hypo- = one less oxygen than –ite Common Polyatomic Ions (Alphabetical order by formula) Ion Symbol Ion Name Ion Symbol Ion Name Ion Symbol Ion Name Ion Symbol Ion Name AsO 3 3- Arsenite C 2 O 4 2- Oxalate IO 3 - Iodate PO 3 3- Phosphite 3- Arsenate CrO 2 - Chromite IO 4 - Periodate PO 4 3- Phosphate Chromate MnO 4 2- Manganate Dichromate MnO 4 - AsO 4 BO 3 2- 2- PbO 2 2- Plumbite Permanganate PbO 3 2- Plumbate Borate CrO 4 BrO- Hypobromite Cr 2 O 7 BrO 2 - Bromite Fe(CN) 6 3- Ferricyanide N3 - Azide ReO 4 2- Rhenate BrO 3 - Bromate Fe(CN) 6 4- Ferrocyanide NCO- Isocyanate SCN- Thiocyanate BrO 4 - Perbromate HAsO 4 2- Hydrogen arsenate NH 2 - Amide SO 3 2- Sulfite CH 3 CO 2 or CH 3 COO- Acetate HCO 3 - Hydrogen carbonate NH 4 Ammonium SO 4 2- Sulfate C 6 H 5 O 7 3- Citrate HPO 3 2- Hydrogen Phosphite N2H3- Hydrazide S 2 O 3 2- Thiosulfate ClO- Hypochlorite HPO 4 2- Hydrogen Phosphate NO 2 - Nitrite S2O4 2- Dithionite ClO 2 - Chlorite H 2 PO 3 - Dihydrogen Phosphite NO 3 - Nitrate S 2 O 6 2- Dithionate ClO 3 - Chlorate H 2 PO 4 2- Dihydrogen Phosphate O2- Superoxide SeO 3 2- Selenite ClO 4 - Perchlorate HSO 3 - Hydrogen Sulfite O 2 2- Peroxide SeO 4 2- Selenate CN - Cyanide HSO 4 - Hydrogen Sulfate O3 - Ozonide SiO 3 2- Silicate CNO- Fulminate IO- Hypoiodite OCN - Cyanate SnO 2 2- Stannite 2- Carbonate IO 2 - Iodite OH- Hydroxide SnO 3 2- Stannate WO 4 2- Tungstate CO 3 2- + NOTE: -ite ending means one less oxygen than the -ate form. PREFIXES: per- = one more oxygen than -ate hypo- = one less oxygen than -ite