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An Archaeological Sample Contains 0 ×\times 10-10/year ×\times 109 Years
B)8 ×\times 108 Years
C)2

Question 7

Multiple Choice

An archaeological sample contains 0.739 g of lead-206 and 2.328 g of uranium-238.Assume that all the lead now present in the rock came from the radioactive decay of the uranium and that no appreciable amounts of other radioactive nuclides are present in the sample.The decay rate constant for the uranium is 1.54 ×\times 10-10/year.What is the age of the sample?


A) 8.54 ×\times 109 years
B) 8.81 ×\times 108 years
C) 2.03 ×\times 109 years
D) 6.51 ×\times 109 years
E) none of these

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