If you have a sample of a radioactive substance and you
If you have a sample of a radioactive substance, and you measure 25mCi of activity on the day it arrives. It sits around for 11,460 years, and you remeasure the activity it is only 6.25mCi. What is the half life of the compound?
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if you have a sample of a radioactive substance and you measure 25mci of activity on the day it arrives it sits around
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