Home 29 Cu Copper back to the periodic table
 
Atomic number   29
Symbol   Cu
Atomic weight   63.546
Density [g/cm3]   8.92
Melting point [°C]   1083.4
Boiling point [°C]   2595
1st Ionization energy [eV]   7.726
Electronic configuration   [Ar] 3d10 4s
Oxidation number (most stable)   2, 1
Atomic radius [pm]   127.8
Ionic radius [pm]   72 (2+)
Abundance in crustal rocks [ppm]   68
Origin of the name   (lat.) cuprum = copper
Discovery   known since ancient times
Uses   for the production of copper alloys and various uses in the electric industry.
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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