Home 78 Pt Platinum back to the periodic table
 
Atomic number   78
Symbol   Pt
Atomic weight   195.08
Density [g/cm3]   21.45
Melting point [°C]   1772
Boiling point [°C]   3830
1st Ionization energy [eV]   9.0
Electronic configuration   [Xe] 4f14 5d9  6s
Oxidation number (most stable)   4, 2, 0
Atomic radius [pm]   138
Ionic radius [pm]   80 (2+)
Abundance in crustal rocks [ppm]   0.01
Origin of the name   (span.) platina = silver
Discovery   known since about 1500
Uses   substantial quantities for catalysts, crucibles, electrodes and in the dental technology.
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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