Common Polyatomic Ions -- AP Chemistry
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58 terms
Terms | Definitions |
|---|---|
 ANIONS | NEGATIVE CHARGE |
| 1- | 1- |
| acetate | CH3COO(-) (also, C2H3O2) |
| amide | NH2(-) |
| azide | N3(-) |
| benzoate | C6H5COO(-) |
| bromate | BrO3(-) |
| chlorate | ClO3(-) |
| chlorite | ClO3(-) |
| cyanate | OCN(-) |
| cyanide | CN(-) |
| dihydrogen pohsphate | H2PO4(-) |
| formate | HCOO(-) |
| hydrogen carbonate | HCO3 (-) (bicarbonate) |
| hydrogen sulfate | HSO4 (-) (bisulfate) |
| hydrogen sulfide | HS (-) (bisulfide or hydrosulfide) |
| hydroxide | OH (-) (called hydroxyl when aqueous) |
| hypochlorite | ClO (-) |
| idodate | IO3 (-) |
| nitrate | NO3(-) |
| nitrite | NO2(-) |
| perchlorate | ClO4(-) |
| permanganate | MnO4(-) |
| triiodide | I3 (-) |
| 2- | 2- |
| carbonate | CO3 (2-) |
| chromate | CrO4(2-) |
| dichromate | Cr2O7(2-) |
| imide | NH(2-) |
| manganate | MnO4(2-) |
| metasilicate | SiO3(2-) |
| monohydrogen phosphate | HPO4(2-) |
| oxalate | C2O4(2-) |
| peroxydisulfate | S2O8(2-) |
| phthalate | C8H4O4(2-) |
| selenate | SeO4(2-) |
| sulfate | SO4(2-) |
| sulfite | SO3(2-) |
| tartrate | C4H4O6(2-) |
| tellurate | TeO4(2-) |
| tetraborate | B4O7(2-) |
| thiosulfate | S2O3(2-) |
| 3- | 3- |
| aluminate | AlO3(3-) |
| arsenate | AsO4(3-) |
| borate | BO3(3-) |
| citrate | C6H5O7(3-) |
| phosphate | PO4(3-) |
| phosphite | PO3(3-) |
| 4- | 4- |
| orthosilicate | SiO4(4-) |
| pyrophosphate | P2O7(4-) |
| 5- | 5- |
| tripolyphosphate | P3H10(5-) |
| CATIONS | POSITIVE CHARGE |
| 1+ | 1+ |
| ammonium | NH4(+) |
| hydronium | H3O(+) |
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