| A | B |
|---|
| NH4 (+) | ammonium |
| NO2 (-) | nitrite |
| NO3 (-) | nitrate |
| SO3 (2-) | sufite |
| SO4 (2-) | sulfate |
| HSO4 (-) | hydrogen sulfate or bisulfate |
| OH (-) | hydroxide |
| CN (-) | cyanide |
| PO4 (3-) | phosphate |
| HPO4 (2-) | hydrogen phosphate or biphosphate |
| C2H3O2 (-) | acetate |
| AsO3 (3-) | arsenate |
| BO3 (3-) | borate |
| BrO3 (-) | bromate |
| BrO2 (-) | bromite |
| CO3 (2-) | carbonate |
| CrO4 (2-) | chromate |
| ClO3 (-) | chlorate |
| ClO2 (-) | chlorite |
| ClO (-) | hypochlorite |
| ClO4 (-) | perchlorate |
| MnO4 (-) | permanganate |
| HCO3 (-) | hydrogen carbonate or bicarbonate |
| IO3 (-) | iodate |
| H2PO4 (-) | dihydrogen phosphate |
| O2 (2-) | peroxide |
| Hg (2+) | mercuric |
| Hg2 (2+) | mercurous |
| covalently bonded set of two or more atoms that can be considered to behave as a single unit and that has a net charge that is not zero. | POLYATOMIC IONS |
| prefix & suffix of polyatomic ions have ONE more oxygen than the –ate ions | Per --ate |
| suffix of polyatomic ions have ONE less oxygen than the –ate ions | ITE |
| prefix & suffix of polyatomic ions have ONE less oxygen than the –ite ions, that is, two less oxygen atoms than the -ate ions. | Hypo –ite |
| prefix "bi" means the polyatomic ion contains | hydrogen |
| Ions that end in ______ have oxygen in them | ate |
