Asked by Tamera

The half-life of I-131 is 8.00 days. If a medical treatment involves a dose of 400. mg of I-131, how much of the isotope remains after 48 days?

3.125 mg


6.25 mg


12.5 mg


25 mg

Answers

Answered by DrBob222
This is done the same way as the Ba-122 problem above.
Answered by Tamera
6.25

Thank you.
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