Home 99 Es Einsteinium back to the periodic table
 
Atomic number   99
Symbol   Es
Atomic weight   252.0829
Density [g/cm3]   ---
Melting point [°C]   860
Boiling point [°C]   ---
1st Ionization energy [eV]   ---
Electronic configuration   [Rn] 5f11 7s2
Oxidation number (most stable)   3
Atomic radius [pm]   ---
Ionic radius [pm]   98 (3+)
Abundance in crustal rocks [ppm]   0
Origin of the name   named after the physicist Albert Einstein
Discovery   1950 by the Americans Seaborg et al.
Uses   no technical significance.
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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