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Polonium
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English Dictionary: Polonium by the DICT Development Group
3 results for Polonium
From WordNet (r) 3.0 (2006) [wn]:
polonium
n
  1. a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor
    Synonym(s): polonium, Po, atomic number 84
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Polonium \Po*lo"ni*um\, n. [NL. So named after Poland, in L.
      form Polonia, one of the discoverers being a Pole.] (Chem.)
      A supposed new element, a radioactive substance discovered by
      M. and MMe. Curie in pitchblende. It is closely related
      chemically to bismuth. It emits only alpha rays and is
      perhaps identical with radium F.

From The Elements (22Oct97) [elements]:
   polonium
   Symbol: Po
   Atomic number: 84
   Atomic weight: (210)
   Rare radioactive metallic element, belongs to group 16 of the periodic
   table. Over 30 known isotopes exist, the most of all elements. Po-209 has
   a half-life of 103 years. Possible uses in heating spacecraft. Discovered
   by Marie Curie in 1898 in a sample of pitchblende.
  
  
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