Home 42 Mo Molybdenum back to the periodic table
 
Atomic number   42
Symbol   Mo
Atomic weight   95.94
Density [g/cm3]   10.28
Melting point [°C]   2617
Boiling point [°C]   5560
1st Ionization energy [eV]   7.099
Electronic configuration   [Kr] 4d5 5s
Oxidation number (most stable)   6, 5, 4, 3, 2, 0
Atomic radius [pm]   136.2
Ionic radius [pm]   60 (6+)
Abundance in crustal rocks [ppm]   1.2
Origin of the name   (greek) molybdos = lead (name for lead-similar substances)
Discovery   1778 by Carl Wilhelm Scheele
Uses   as steel-noble as well as with applications with high demands on materials as in the aircraft construction or with temperature-steady materials.
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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