Multiple Choice
The half-life of 222Rn is 3.80 days. If a sample contains 36.0 g of Rn-222, how many years will it take for the sample to be reduced to 1.00 mg of Rn-222?
A) 19.7
B) 0.1597
C) 8.53
D) 0.0234
E) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
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