Yes, iron and chlorine can form ionic compounds, in fact, Iron Chloride is the name for the compound formed between iron and chlorine, and it can exist as FeCl2 (Iron (II) Chloride) or FeCl3 (Iron (III) Chloride), depending on the oxidation state of iron. This is because iron, as a metal, tends to lose electrons and form positive ions, while chlorine, as a non-metal, tends to gain electrons and form negative ions. When these oppositely charged ions come together, they form an ionic compound. The resulting compounds are typically crystalline solids at room temperature. Iron (II) Chloride is a greenish-yellow solid, while Iron (III) Chloride is a dark red solid. Both compounds are soluble in water and polar solvents, forming solutions that conduct electricity due to the presence of free ions.