Fe2O3 is known as iron(III) oxide or hematite and has two iron atoms bonded to three oxygen atoms. On the other hand, Fe3O4 is called magnetite or iron(II,III) oxide and contains both ferrous (Fe2+) and ferric (Fe3+) iron ions with four oxygen atoms. 9 In terms of magnetic ...
followed by the name of the anion. There are different ways of naming these compounds. For instance, we can name the cation by indicating the oxidation state using Roman numbers, i.e. iron(II) or iron(III). Or else, we can name them using suffixes, i.e. ferrous or ...