Home 26 Fe Iron back to the periodic table

Atomic number   26
Symbol   Fe
Atomic weight   55.847
Density [g/cm3]   7.87
Melting point [°C]   1535
Boiling point [°C]   2750
1st Ionization energy [eV]   7.870
Electronic configuration   [Ar] 3d6 4s2
Oxidation number (most stable)   6, 3, 2, 0, 2-
Atomic radius [pm]   124.1 (a)
Ionic radius [pm]   64 (3+)
Abundance in crustal rocks [ppm]   62000
Origin of the name   (lat.) ferrum = iron
Discovery   known since ancient times
Uses   mainly as a raw material for the production of steel.

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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