Write an equation that shows the formation of a iron(iii) ion from a neutral iron atom

Explanation:

solution:

for iron(iii) to form ions, it must have lost 3 electrons when reacting with another atom. The loss makes the iron atom a cation which is a positively charged ion:

                                      Fe  → Fe³⁺ + 3e⁻

The reaction above shows an oxidation reaction in which iron loses three electrons.