The Activity of a Radioactive Sample Is the Number of Decay

question 115

Multiple Choice

The activity of a radioactive sample is the number of decay events per second. The SI unit of activity is the becquerel (1 Bq = 1/s) . An older unit for activity is the curie (1 Ci = 3.70 x10¹⁰/s) . What is the activity in Bq of a sample with an activity of 47 µCi of radiation?

• A) 7.9 x10² Bq
• B) 7.9 x 10⁸ Bq
• C) 1.7 x 10¹² Bq
• D) 1.7 x 10⁶ Bq
• E) 1.3 x 10^-16 Bq

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