Iron
Chemical element
Iron is a chemical element; it has symbol Fe and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth's outer and... Wikipedia
Symbol: Fe
Atomic mass: 55.845 u
Atomic number: 26
Electron configuration: [Ar] 3d⁶ 4s²
Vitamins: vitamin C
Density (near r.t.): 7.874 g/cm3
Discovery: before 5000 BC