Multiple Choice
The half-life of a radioactive material is 4.5 days.How many days are required for a sample,with an initial activity of 1.0 × 105 Bq,to decay to an activity of 100 Bq?
A) 45 days
B) 36 days
C) 54 days
D) 31 days
Correct Answer:

Verified
Correct Answer:
Verified
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