Iron is a chemical element with symbol Fe (from Latin: ferrum) and atomic number 26. It is a .. Although a further tiny energy gain could be extracted by synthesizingNi, .. Iron reacts with oxygen in the air to form various oxide and hydroxide.
Included in this article also is a discussion of the mining of iron and of its . used as a source of iron before 3000 bc, but extraction of the metal from ores dates Coke burns in oxygen present in the air blast in a combustion reaction taking.