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At 3:00 PM on Monday, a pure source of 99Mo was removed from the reactor and brought to your lab. It sat undisturbed until 10:00

At 3:00 PM on Monday, a pure source of 99Mo was removed from the reactor and brought to your lab. It sat undisturbed until 10:00 AM the following Thursday, when you were able to extract 24 MBq of 99mTc. What was the activity of the 99Mo immediately after removal from the reactor? The decay of 99Mo to 99mTc has a branching ratio of 88%.

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