The half-life of 90,38Sr is 28 years. What is the disintegration rate of 15 mg of this isotope?

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asked Jan 10, 2018 in Physics by sforrest072 (157,439 points) 61 410 949
edited Mar 6, 2018 by Vikash Kumar

The half-life of 9038Sr is 28 years. What is the disintegration rate of 15 mg of this isotope?

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answered Jan 10, 2018 by mdsamim (213,225 points) 5 10 15
selected Jan 10, 2018 by sforrest072
 
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Hence, the disintegration rate of 15 mg of the given isotope is 7.878 × 1010 atoms/s.

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