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Feynmanium (symbol Fy) is informally used for a hypothetical chemical element of atomic number is 137, which has not been observed to occur naturally, nor has been synthesized, nor is it known if this element is physically possible. [Post]

 

  Submitted: 2009-12-05 14:26:45;   Last Modified: 2009-12-06 11:55:00.



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