The half life of Tc^(99) is 6.0 hr. The...

The half life of `Tc^(99)` is `6.0 hr`. The delivery of a sample of `Tc^(99)` from the reactor to the nuclear medicine lab of a certain hospital takes `3.0 hr`. What is the minimum amount of `Tc^(99)` that must be shipped in order for the lab to receive `10.0 mg` ?

`20.0` mg

`15.0` mg

`14.1` mg

`12.5` mg

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MOTION-RADIOACTIVITY -EXERCISE - 1

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