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October 22, 2014

Homework Help: Science HELP 2nd question

Posted by sam on Friday, February 8, 2008 at 1:05pm.

A sample originally contained 2.5 g of rubidium 87 now contains 1.25 g. The half life of rubidium - 87 is 6 x 10 ( to the 10th) years. How old is teh sample? Is this possible? why or why not?

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