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Polyatomic Ions
| Term | Definition |
|---|---|
| Ammonium | NH4+ |
| Cyanide | CN- |
| Hydroxide | OH- |
| Permanganate | MnO4- |
| Acetate | C2H3O2- |
| Nitrate | NO3- |
| Nitrite | NO2- |
| Carbonate | CO3 2- |
| Sulfate | SO4 2- |
| Sulfite | SO3 2- |
| Thiosulfate | S2O3 2- |
| Phosphate | PO4 3- |
| Chromate | CrO4 2- |
| Dichromate | Cr2O7 2- |
| Oxalate | C2O4- |
| Hypochlorite | ClO- |
| Chlorite | ClO2- |
| Chlorate | ClO3- |
| Perchlorate | ClO4- |
| Hypobromite | BrO- |
| Bromite | BrO2- |
| Bromate | BrO3- |
| Perbromate | BrO4- |
| Hypoiodite | IO- |
| Iodite | IO2- |
| Iodate | IO3- |
| Periodate | IO4- |