Thursday, February 28, 2013

Polonium



  • Polonium is a chemical element with the symbol Po and atomic number 84, discovered in 1898 by Marie and Pierre Curie.
  • Polonium is the first element of the periodic table for which all of its isotopes are radioactive. It is a very rare natural element, Gen Roessler existing in uranium ores in amounts of about 100 µg per ton of ore.
  • Polonium-210 is used mainly in machines to get rid of static electricity. Machines used to make paper, sheet plastics and synthetic fibers often use this element.
  • Polonium-210 is also used in brushes to remove dust from photographic films and camera lenses. It can be used to make atomic weapons Polonium-210 is found almost everywhere in nature in low levels, so exposure cannot be completely prevented.

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