Uploaded March 2012 | Updated September 2026, 3 weeks ago

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We'll learn what polyatomic ions are. Polyatomic ions are created when a number of atoms come to together to form a group, and then that group has either a positive or a negative charge, which means that it can be either a cation or an anion. We discuss how protons and electrons balance to give a net charge, and then discuss some common polyatomic ions.