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August 27, 2015

Homework Help: Chemistry

Posted by Help!! on Wednesday, April 27, 2011 at 8:22pm.

Strontium-85, used for bone scans, has a half-life of 64 {\rm d}.How long will it take for the radiation level of strontium-85 to drop to \frac{1}{8} of its original level?

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