* Iron's Common Oxidation States: Iron typically exists in two common oxidation states: +2 (ferrous) and +3 (ferric).
* Stability: While iron can theoretically exist in a +4 oxidation state, it is highly unstable and readily reduces to the more stable +3 state.
Therefore, the formula FeCl₄ is not a valid compound.
The common iron chloride compounds are:
* Iron(II) chloride: FeCl₂
* Iron(III) chloride: FeCl₃
