If 80% of a radioactive element undergoing decay is left over after a – InterviewSolution

1.	If 80% of a radioactive element undergoing decay is left over after a certain period of time t from the start, how many such periods should elapse from the start for the 50% of the element to be left over ?
Answer» If 80% of a radioactive element undergoing decay is left over after a certain period of time t from the start, how many such periods should elapse from the start for the 50% of the element to be left over ?

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