•Notice many have O in them
•Called oxyanions
•Most common is called root-ate (e.g. sulfate)
–One less O than most common?
root-ite (nitrite)
–One less than that?
hypo-root-ite (hypochlorite)
–One more than most common?
per-root-ate (perchlorate)
•Must be able to recognize Polyatomic ions!!!