The half life of radon-222 is 3.8 days. If the original activity of this source was 2400Bq, what do you expect it to be after 15.2 days?
Answers
Answered by
6
Answer:
40Bq
Explanation:
After 7.6 days, radon-222 has elapsed 7.63.8=2 half-lives. So, its original activity would be 22=4 times the amount of activity it has right now.
If it has 10 becquerels of activity right now, that must mean that its original activity was 10 Bq⋅4=40 Bq.
Answered by
1
Answer:
40Bq
Explanation:
After 7.6 days, radon-222 has elapsed 7.63.8=2 half-lives. So, its original activity would be 22=4 times the amount of activity it has right now.
If it has 10 becquerels of activity right now, that must mean that its original activity was 10 Bq⋅4=40 Bq.
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