16. Common activity levels of Radon-222 are in the range of 1 picocurie/liter (pCi/L) at room temperature and pressure. How many atoms of Radon (N) decay each second in a one liter sample of a gas with radiation at this level? t1/2 of Rn-222 = 3.8 days {Rate = K. N and k = 0.693/t1/2) a) 292 atoms b) 1.75 x 104 atoms c) 6.0 x 0 6 atoms

Chemistry for Engineering Students
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Chapter14: Nuclear Chemistry
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16. Common activity levels of Radon-222 are in the range of 1 picocurie/liter (pCi/L) at room
temperature and pressure. How many atoms of Radon (N) decay each second in a one liter
sample of a gas with radiation at this level? t1/2 of Rn-222 = 3.8 days
{Rate = K. N and k = 0.693/t1/2)
a) 292 atoms
b) 1.75 x 104 atoms
c) 6.0 x 0 6 atoms
Transcribed Image Text:16. Common activity levels of Radon-222 are in the range of 1 picocurie/liter (pCi/L) at room temperature and pressure. How many atoms of Radon (N) decay each second in a one liter sample of a gas with radiation at this level? t1/2 of Rn-222 = 3.8 days {Rate = K. N and k = 0.693/t1/2) a) 292 atoms b) 1.75 x 104 atoms c) 6.0 x 0 6 atoms
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