Explain the basic format and the steps needed to name an ionic compound composed of a cation that has a possibility of existing in more than one oxidation state.

Question

Is this right:

There are four prefixes used when naming ionic compounds: per__ate, -ate, -ite, and hypo__ite. Depending on how many oxygen atoms are in the compound determines which prefix they get. If they have 4 or more, the prefix per__ate goes around the base name of the cation. If it's 3 , -ate goes at the end of the cation's base name. -ite goes to compounds with 2 oxygen atoms and hypo__ite goes to those with 1 or less.

Answer 1

I don't think so. You have explained how to name anions; the problem asks for cations.
CuSO4 is copper(II) sulfate.
FeCl2 is iron(II) chloride.
FeCl3 is iron(III) chloride.

Answer 2

So my answer should be something around:

When writing the name of an ionic compound containing a cation with more than one oxidation state, use the cation name and write the charge of the cation in roman numerals. For example, when writing out FeSO4, it would come out as iron (II) sulfate.

Answer 3

Yes.

Answer 4

Note that I would capitalize the word Roman.