Multiple Choice
Radon-222 has a half-life of 3.8 days. A sample from a basement in Colorado was analyzed 5.0 days after it was collected and found to have an activity of 0.17 Bq. What was the original activity of this sample?
A) 0.22 Bq
B) 0.32 Bq
C) 0.42 Bq
D) 0.62 Bq
E) 0.52 Bq
Correct Answer:
Verified
Correct Answer:
Verified
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