Question #e03c2

1 Answer
Mar 25, 2014

Anions are simply ions that have acquired an extra electron, INCLUDING polyatomic ions. The extra electron gives it a negative charge.

Negatively charged polyatomic ions are called Anions.
Positively charged polyatomic ions are called Cations.

Polyatomic ions have 2 or more ions bonded together.

Most polyatomic ions are Anions, meaning they are negatively charged.
Some polyatiomic ions are Cations, meaning they are positively charged.

A fun way that I memorized it is that I love cats.
CATions are positive :)

List of common Polyatomic ions: