What mass of fluorine-18 (F-18) is needed to have an activity of 1 mCi? How long will it take for the activity to decrease to 0.25 mCi?
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11. What mass of fluorine-18 (F-18) is needed to have an activity of 1 mCi? How long will
it take for the activity to decrease to 0.25 mCi?
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