Home 52 Te Tellurium back to the periodic table
 
Atomic number   52
Symbol   Te
Atomic weight   127.60
Density [g/cm3]   6.25
Melting point [°C]   449.5
Boiling point [°C]   990
1st Ionization energy [eV]   9.009
Electronic configuration   [Kr] 4d10 5s2 5p4
Oxidation number (most stable)   6, 4, 2-
Atomic radius [pm]   143.2
Ionic radius [pm]   221 (2-)
Abundance in crustal rocks [ppm]   0.001
Origin of the name   (lat.) tellus = earth
Discovery   1782 by Müller von Reichenstein
Uses   in steel -, aluminum and copper alloys as well as in the semiconductor technology and for photoelectric cells.
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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