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Radon Half Life Calculation

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The half-life of radon is {eq}3.82 {/eq} days. If a sample initially contains {eq}48,000 {/eq} atoms of radon, how many atoms will remain after {eq}7.64 {/eq} days?

A

6,000 atoms

B

36,000 atoms

C

3,000 atoms

D

12,000 atoms

E

24,000 atoms

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