What is its activity at the time it is injected

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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 1.30?Ci is injected into the patient 1.80h after it is prepared.

What is its activity at the time it is injected?

R=___________________ ?Ci

Reference no: EM13341870

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