At 3:00 PM on Monday, a pure source of

^(99)Mo

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

24MBq

of

^(99mTc)

. What was the activity of the

^(99)Mo

immediately after removal from the reactor? The decay of

^(99)Mo

to

^(99m)Tc

has a branching ratio of

88%

.

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 24MBq 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%