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Fred Bayer | Rosenheim | Germany | (+49) 8031 86550 | fred@bayerf.de

84 – Po – Polonium

Po Po-210 (half life 138 days) is part of the decay chain of U-238, so traces of Polonium exist in the pitchblende shown here. Amount: 0.7 g pitchblende, corresponding to 25 pg or 70 billion atoms of Po-210.

Physical and chemical data
Atomic mass208.9824
Density9.2 g·cm-3
Melting point254 °C
Boiling point962 °C
Abundance2.00e-14 %
Electronegativy1.8
Oxydation levels6, [4], 2
Electron configuration[Xe]4f14 5d10 6s2 6p4

H   He
Li Be   B C N O F Ne
Na Mg   Al Si P S Cl Ar
K Ca Sc   Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y   Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg  
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