A certain isotope has a specific activity of 7.29 * 10¯4 Ci/g. How many particles will a 75.0 mg sample emit in one hour?
A) 9.99 *104
B) 2.02 * 106
C) 7.28 * 109
D) 1.29* 1012
E) None of these choices is correct.
Correct Answer:
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