Do Polyatomic Ions Have Prefixes?
Polyatomic Ions with One Extra Oxygen (As Compared to the Typical Polyatomic Ion) Have the Prefix “Per-” and the Suffix “-Ic. ” Polyatomic Ions with One Fewer...
Polyatomic ions with one extra oxygen (as compared to the typical polyatomic ion) have the prefix “per-” and the suffix “-ic.” Polyatomic ions with one fewer oxygen have the suffix “-ous”; ions with two fewer have the prefix “hypo-” and the suffix “-ous.”
Do you use prefixes when naming polyatomic ions?
Note: Greek prefixes are not used to indicate the number of atoms, or polyatomic ions, in the formula unit for the compound (e.g., Ca(NO3)2 is named "calcium nitrate" not "calciuim dinitrate").
Do polyatomic ions have special names?
Note that the -ite polyatomic ion has one less oxygen atom in its formula than the -ate ion but with the same ionic charge. The naming of ionic compounds that contain polyatomic ions follows the same rules as the naming for other ionic compounds: simply combine the name of the cation and the name of the anion.
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