The nuclide 189F (β emitter, t1/2 = 109.8 min) is a useful radioactive tracer for human consumption. An amount of 18F having an activity of 1.2 x 107 Bq is administered to a patient. What is the activity 48 hours later?

The nuclide 189F (β emitter, t1/2 = 109.8 min) is a useful radioactive tracer for human consumption. An amount of 18F having an activity of 1.2 x 107 Bq is administered to a patient. What is the activity 48 hours later?

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Question

The nuclide ¹⁸₉F (β emitter, t_1/2 = 109.8 min) is a useful radioactive tracer for human consumption. An amount of ¹⁸F having an activity of 1.2 x 10⁷ Bq is administered to a patient. What is the activity 48 hours later?

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