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iron
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A periodic table element box for iron displays its atomic number 26, symbol Fe, atomic weight 55.845, electron configuration, and name. Icons indicate iron is a solid, a transition metal, has a body-centered cubic crystal structure, and equal relative strength. Labels explain each property.
Study how iron ore is mined with explosives and crushed and concentrated with remote-controlled machines
Explore an interactive periodic table of the elements Figure 19: Summary of shock-wave data on the densities of oxides and iron compounds at high pressures and high temperatures. The seismologically derived pressure-density curves for the lower mantle and outer core are included for comparison. A scientific graph plots average nuclear binding energy per nucleon (in MeV) against atomic mass number, showing a sharp rise at low mass numbers, peaking near iron (Fe), then gradually declining for heavier elements. Key isotopes are labeled along the curve. bioremediation Iron-carbon equilibrium diagram. Global distribution of iron on the Moon's surface Diagram showing atomic structures of native elements: iron as simple cubic packing of spheres, arsenic and antimony as a close-packed model, diamond as a 3D lattice, and graphite as stacked sheets with labeled cleavage planes.
Close-up of a medical blood bag filled with red blood, showing attached tubes and connectors against a blurred background.
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A periodic table element box for iron displays its atomic number 26, symbol Fe, atomic weight 55.845, electron configuration, and name. Icons indicate iron is a solid, a transition metal, has a body-centered cubic crystal structure, and equal relative strength. Labels explain each property.
iron Properties of iron.

iron

chemical element
Also known as: Fe, ferrum
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iron (Fe), chemical element, metal of Group 8 (VIIIb) of the periodic table, the most-used and cheapest metal. atomic number26 atomic weight55.845 melting point1,538 °C (2,800 °F) boiling point3,000 °C (5,432 °F) specific gravity7.86 (20 °C) oxidation states+2, +3, +4, +6 electron configuration[Ar]3d64s2 Iron makes up 5 percent of Earth’s crust and is second in abundance to aluminum among the metals and fourth in abundance behind oxygen, silicon, and aluminum among the elements. Iron, which...

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