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Question
The half-life of bromine-74 is 25 min. How much of a 4.0 mg sample is still active after 75 min?A) 0.50 mg
B) 1.0 mg
C) 2.0 mg
D) 0.25 mg
E) 4.0 mg
Answer
This answer is hidden. It contains 1 characters.
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