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April 20, 2014

Homework Help: Science

Posted by Nivia on Sunday, September 30, 2012 at 3:51am.

Natural Uranium contains 15 percent Sm147. Sm147 is radioactive and decays by alpha decay. What will be the number of disintegrations per gram per second of the natural element? The half-life of Sm147 is 1.3x1010 years.

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