Home 6 C Carbon back to the periodic table

Atomic number   6
Symbol   C
Atomic weight   12.011
Density [g/cm3]   3.51 (Diamond)
Melting point [°C]   3550 (Diamond)
Boiling point [°C]   ca. 4500
1st Ionization energy [eV]   11.260
Electronic configuration   [He] 2s2 2p2
Oxidation number (most stable)   4, 2, 4-
Atomic radius [pm]   77.2 (Diamond)
Ionic radius [pm]   16 (4+)
Abundance in crustal rocks [ppm]   180
Origin of the name   (lat.) carboneum = charcoal 
Discovery   known since ancient times
Uses   Graphite as a refractory material as well as a solid lubricant and due to its electrical conductivity in the electrical industry (electro motor),
Diamond as a hard material for drilling and cutting.

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