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A Geological Sample Is Found to Have a Pb-206/U-238 Mass

question 15

Multiple Choice

A geological sample is found to have a Pb-206/U-238 mass ratio of 0.337/1.00.Assuming there was no Pb-206 present when the sample was formed,how old is it? The half-life of U-238 is 4.5 × 109 years.


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