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Practice Identifying Polyatomic Ions

How well can you identify the names and formulas of common polyatomic ions?

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Use these flashcards to help you practice remembering the polyatomic ions. When given a formula, identify the name of that polyatomic ion. When given a name, identify the formula of that polyatomic ion. Click each card to flip it over and check your answer.

ammonium

NH4+

chlorite

ClO2

CO32−

carbonate

hydroxide

OH

NO2

nitrite

sulfate

SO42−

PO43−

phosphate

carbonite

CO22−

ClO3

chlorate

phosphite

PO33−

nitrate

NO3

sulfite

SO32−