Problem: Be sure to answer all parts.Determine the age of rock that contains 31.4 mg of  238U and 2.77 mg of  206Pb. (t1/2 of  238U = 4.51 x 109 yr). Enter your answer in scientific notation.

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Be sure to answer all parts.

Determine the age of rock that contains 31.4 mg of  238U and 2.77 mg of  206Pb. 

(t1/2 of  238U = 4.51 x 109 yr). Enter your answer in scientific notation.

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Our tutors have indicated that to solve this problem you will need to apply the First Order Half Life concept. You can view video lessons to learn First Order Half Life. Or if you need more First Order Half Life practice, you can also practice First Order Half Life practice problems.