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OpenStudy (anonymous):
A certain radioactive element has a half-life of one hour. If you start with 1.0 gram of the element at noon, how much of the radioactive element will be left at 2 p.m.? ( 3 points) Answer 0.50 grams 0.25 grams 0.125 grams 0.0 grams
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OpenStudy (anonymous):
@timo86m
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