Technetium-99m (gamma emitter, t1/2 = 6.02 hr) is widely used for diagnosis in medicine. A sample prepared in the early morning for use that day had an activity of 4.52 × 10-6 Ci. What will its activity be at the end of the day-that is, after 8.00 hr?

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Technetium-99m (gamma emitter, t1/2 = 6.02 hr) is widely used for diagnosis in medicine. A sample prepared in the early morning for use that day had an activity of 4.52 × 10-6 Ci.

What will its activity be at the end of the day-that is, after 8.00 hr?

Technetium-99m (gamma emitter, t1/2 = 6.02 hr) is widely used for diagnosis in medicine. A sample prepared in the early morning for
use that day had an activity of 4.52 x 106 Ci.
Part 1
Your answer is correct.
Choose the equations needed to calculate the activity.
|In ([A]o[A]) = kt
O In ([A]MA]) = kt
O k= t1/2 In2
V k= In2 /t1/2
eTextbook and Media
Attempts: 1 of 15 used
Part 2
What will its activity be at the end of the day-that is, after 8.00 hr?
[A]: - i
Ci
Transcribed Image Text:Technetium-99m (gamma emitter, t1/2 = 6.02 hr) is widely used for diagnosis in medicine. A sample prepared in the early morning for use that day had an activity of 4.52 x 106 Ci. Part 1 Your answer is correct. Choose the equations needed to calculate the activity. |In ([A]o[A]) = kt O In ([A]MA]) = kt O k= t1/2 In2 V k= In2 /t1/2 eTextbook and Media Attempts: 1 of 15 used Part 2 What will its activity be at the end of the day-that is, after 8.00 hr? [A]: - i Ci
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