* Iron (Fe) has common oxidation states of +2 and +3. This means it can form ions with either a +2 charge (Fe²⁺) or a +3 charge (Fe³⁺).
* Oxygen (O) typically has an oxidation state of -2. This means it forms ions with a -2 charge (O²⁻).
To form a neutral compound, the positive and negative charges must balance. Here are the common iron oxides:
* Iron(II) oxide (FeO): One Fe²⁺ ion combines with one O²⁻ ion.
* Iron(III) oxide (Fe₂O₃): Two Fe³⁺ ions combine with three O²⁻ ions.
Therefore, FeO3 doesn't exist as a stable compound.
