Question: The half-life for the process is 238U 206Pb is 4.5 109 yr. A mineral sample contains 75.0 mg of and 18.0 mg of

The half-life for the process is 238U → 206Pb is 4.5 × 109 yr. A mineral sample contains 75.0 mg of and 18.0 mg of 206Pb.What is the age of the mineral?

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