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Polyatomic Ions
A polyatomic ion is a molecular ion created when a molecule gives up or receives electrons and can then combine with other ions due to the attractive force of opposite charges.
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| A | B |
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| AlO2- | aluminate |
| IO4- | periodate |
| CrO2- | chromite chromate cyanide |
| CrO42- | chromate |
| CN- | cyanide |
| NH4+ | ammonium |
| H2PO3- | dihydrogen phosphite |
| HPO32- | hydrogen phosphite |
| PO33- P2O74- H3O+ | phosphite pyrophosphate hydronium |
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