A sample of a radioactive isotope has an initial activity
A sample of a radioactive isotope has an initial activity (at time t = 0) of 0.500 mCi. At time t = 51.2 d the activity is 0.387 mCi. Compute the half-life of this isotope.
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a sample of a radioactive isotope has an initial activity at time t 0 of 0500 mci at time t 512 d the activity is
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