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Answer to Question #282928 in Atomic and Nuclear Physics for BIGIRMANA Elie
Question #282928
One (1) gram of aradioactive substance disintegrates at the rate of 3.7 × 1010 per
second. The atomic weight of the substance is 226. Calculate its mean life.
Expert's answer
"\\tau=\\frac NA=\\frac{mN_A}{MA}=7.2\\cdot 10^{10}~s."
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