Question: Three hours after a sample was taken, the activity was 8.5 X 105 dpm. The half-life of the nuclide of concern is 71 minutes.

Three hours after a sample was taken, the activity was 8.5 X

Three hours after a sample was taken, the activity was 8.5 X 105 dpm. The half-life of the nuclide of concern is 71 minutes. What was the original activity in mCi?(2 pts) The initial activity of a radioactive sample is 1.9 X 105 dpm. The half-life of the nuclide of concern is 11 minutes. What is the activity of the sample after 20 minutes in Bq?(2 pts)

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