The Activity of a Radioactive Sample Is the Number of Decay

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  10¹⁰/s) . What is the activity in Bq of a sample with an activity of 47  Ci of radiation?

A) 7.9  10 ² Bq
B) 7.9  10 ⁸ Bq
C) 1.7  10¹² Bq
D) 1.7  10 ⁶ Bq
E) 1.3  10 ^16 Bq