A sample contains 1.000 × 10−3 g of 40K. The half-life of 40K is 1.250 × 109 years. What is the activity of the sample?
A) 3300 Bq
B) 1250 Bq
C) 382.0 Bq
D) 265.0 Bq
E) 3.000 Bq
Correct Answer:
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