Names of Polyatomic ions and their Charges

In this course, you will need to learn some polyatomic ions. Be sure to learn their names, formulas and their charges.

Cation: ammonium, NH4+
Anions: nitrate, NO3
acetate, C2H3O2
sulfate, SO42-
hydroxide, OH
phosphate, PO43-
carbonate, CO32-
cyanide, CN
chlorate, ClO3
permanganate, MnO4
chromate, CrO42-
dichromate, Cr2O72-

Hint: Make flash cards for learning the ions – on one side, write the formula, on the other side, write the name.