Chemistry-
General
Easy
Question
The half-life of 99Tc is 6.0 h. The total residual activity in a patient after receiving an injection containing 99Tc must not be more than 0.01 Ci, after 36.0 hours. What is the maximum activity (in Ci) that the sample injected can have?
- 0.06
- 0.16
- 0.32
- 0.64
The correct answer is: 0.64
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