Fe atoms lose two electrons, so they are oxidized to Fe2+ ions. Note that the two-electron oxidation raises the oxidation state of iron from 0 in the atom to +2 in the ion.
Is oxidation possible in Fe2+?
Constructing equations for redox reactions
They can oxidize Fe2+ ions to Fe3+ ions.
What happens when iron is oxidized to Fe2+ ions?
iron loses electrons and is oxidised to iron(II) ions: Fe → Fe 2+ + 2e. oxygen gains electrons in the presence of water and is reduced: ½O 2 + 2e - + H 2O → 2OH.
