Home 84 Po Polonium back to the periodic table

Atomic number   84
Symbol   Po
Atomic weight   208.9824
Density [g/cm3]   9.20
Melting point [°C]   254
Boiling point [°C]   962
1st Ionization energy [eV]   8.24
Electronic configuration   [Xe] 4f14 5d10  6s2 6p4
Oxidation number (most stable)   6, 4, 2
Atomic radius [pm]   167.5 (a)
Ionic radius [pm]   97 (6+)
Abundance in crustal rocks [ppm]   traces
Origin of the name   named after Poland, the homeland of Marie Curie
Discovery   1898 by Marie and Pièrre Curie 
Uses   no technical significance, the the field of research as a source of a-rays.

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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