If a polyatomic ion is made of halogen and oxygen atoms, what form would one take if it had the fewest atoms?

Question

This form would get only an -ate suffix.
This form would get a hypo- prefix and an -ite suffix.
This form would get a per- prefix and an -ate suffix.
This form would get only an -ite suffix.

#3?

Answer 1

no.
Cl^- chloride
ClO^- hypochlorite
[ClO2]^- chlorite
[ClO3]^- chlorate
[ClO4]^- perchlorate