# A drug prepared for a patient is tagged with 9943Tc which has a half-life of 6.05...

###### Question:

 A drug prepared for a patient is tagged with 9943Tc which has a half-life of 6.05 h. Suppose the drug containing 9943Tc with an activity of 1.90 μCi is injected into the patient 2.00 h after it is prepared. Part A What is its activity at the time it is injected?

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