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Element 26 - Iron (Fe) sound

From iren its Old English name; symbol Fe from its Latin name, ferrum; first utilized by prehistoric man. The fourth most abundant element and the cheapest metal, iron is the basic ingredient of all steel. Making up part of the compound hemoglobin, it carries oxygen in the bloodstream.

Properties

Atomic Number: 26
Atomic Weight: 55.847
Electron Configuration (at ground state): 1s22s22p63s23p63d64s2
Oxidation States (Bold most stable): +2, +3, +6
Boiling Point (K): 3023
Melting Point (K): 1808
Density (at 300K -- g/cm3): 7.874
Atomic Volume (at 300K -- cm3/mol) 7.10
Number of stable isotopes: 4
Mass Number (Bold naturally occurring) -- Half-Life -- Disintigration Type: 59 -- 44.6 days -- beta particle (electron) emission
Covalent Radius (Å): 1.17
Atomic Radius (Å): 1.26
First Ionization Potential (V): 7.870
Electronegativity (Pauling's): 1.83
Specific Heat Capacity (at 300K -- J g-1 K-1): 0.449
Heat of Vaporization (kJ/mol): 349.5
Heat of Fusion (kJ/mol): 13.8
Electrical Conductivity (at 293K for polycrystalline material -- 106 (ohms)-1 cm-1): 11.2
Thermal Conductivity (at 300K -- W m-1 K-1): 80.2
Crystal Structure: Cubic, body centered
Acid-Base Properties: Amphoteric