Q4: - The radioactive isotope Au has a half-life of 64.8 h. A sample containing this isotope has an initial activity of 40 uCi. Calculate the number of nuclei that will decay in the time interval from t =10 h to t2 =12 h.

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Q4: - The radioactive isotope 19Au has a half-life of 64.8 h. A sample containing this isotope has an initial
activity of 40 uCi. Calculate the number of nuclei that will decay in the time interval from t1 =10 h to t
=12 h.
Transcribed Image Text:Q4: - The radioactive isotope 19Au has a half-life of 64.8 h. A sample containing this isotope has an initial activity of 40 uCi. Calculate the number of nuclei that will decay in the time interval from t1 =10 h to t =12 h.
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