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August 3, 2015

Homework Help: Math. Have answer, please show work

Posted by Kyle on Saturday, October 13, 2012 at 7:47pm.

In a tracer method the potassium isotope 42K is used for labelling. The half life of 42K is 12.5 hours. If No is original number of atoms, how many hours will it take until only (1/1024) No Atoms remain?

The answer is 125 hours but I do not know how to get this. Please help!

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