what is the difference between 'iron' and 'metallic iron'?

Question: I want to say that metallic iron is pure iron in a solid form, but I'm not entirely sure.

Answer: The word "iron" covers iron in all of its oxidation states and coordination environments. The phrase "metallic iron" indicates Iron zero- Fe(0). What we normally call "iron metal" is a great sheet of metallic iron atoms bound together in a great big lattice array.

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