Table of Common Polyatomic Ions - Chemistry - Chemistry

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Table of Common Polyatomic Ions

Formulas, Charges, and Names

Related Resources

• Nomenclature of Ionic Compounds
• Group Chemistry
• Element Electron Configuration
• Element Valences
• Charts & Tables

This is a table of some of the most common polyatomic ions. It's worth committing them to memory, including their charges.

+1	-1	-2	-3
NH₄⁺ (ammonium)	OH^- (hydroxide)	CO₃^2- (carbonate)	PO₄^3- (phosphate)
	NO₃^- (nitrate)	SO₄^2- (sulfate)
	ClO₃^- (chlorate)	CrO₄^2- (chromate)
	ClO₄^- (perchlorate)	Cr₂O₇^2- (dichromate)
	MnO₄^- permanganate)
	HCO₃^- (hydrogen carbonate)

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