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2021-2022 Polyatomic Ions to Memorize
This list does not include anions you can get directly from the Periodic Table
- Phosphate, PO43-
- Phosphite, PO33-
- Acetate, C2H3O21-
- Sulfite, SO32-
- Sulfate, SO42-
- Carbonate, CO 32-
- Nitrite, NO21-
- Nitrate, NO31-
- Hydroxide, OH1-
- Chlorite, ClO21-
- Chlorate, ClO31-
- Chromate, CrO42-
- Cyanide, CN1-
PLUS ONE CATION POLYATOMIC IONS: Ammonium NH41+
If homework has polyatomic ions that are NOT included in the above ones you need to memorize, then look in this link (AnionTable).