The decay constant of 235 U is 9.8 x 10 -10 y -1 . (a) Compute the
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The decay constant of 235U is 9.8 x 10-10 y-1.
(a) Compute the half-life.
(b) How many decays occur each second in a 1.0 μg sample of 235U?
(c) How many 235U atoms will remain in the 1.0 mg sample after 106 years?
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