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A rock contains 270 μmol of 238 U (t 1/2 = 4.5×10 9 yr) and 110 μmol of 206 Pb. Assuming that all the 206 Pb comes from decay of the 238 U, estimate the rock’s age.


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  • 24.23 Beatrice commented over 1 year ago
  • Can you break it down in terms of what the question means? I don't understand how the final concentration was calculated and how that information was extracted from the question? Beatrice commented over 1 year ago