Home 79 Au Gold back to the periodic table
 
Atomic number   79
Symbol   Au
Atomic weight   196.96654
Density [g/cm3]   19.32
Melting point [°C]   1064.4
Boiling point [°C]   2940
1st Ionization energy [eV]   9.225
Electronic configuration   [Xe] 4f14 5d10  6s
Oxidation number (most stable)   3, 1
Atomic radius [pm]   144.2
Ionic radius [pm]   137 (1+)
Abundance in crustal rocks [ppm]   0.004
Origin of the name   (lat.) aurum = gold
Discovery   known since ancient times
Uses   electro-technology, galvanotechnics, dental technology, decoration metal.
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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