The half-life of 23U is 4.5 x 10° yr. A sample of rock of mass 1.6 gproduces 29 dis/s. Assuming all the radioactivity is due to 23®U,find the percent by mass of 23*U in the rock.

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Answered: The half-life of 23U is 4.5 x 10° yr. A…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter30: Nuclear Physics

Section: Chapter Questions

Problem 14P

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The half-life of 23U is 4.5 x 10° yr. A sample of rock of mass 1.6 g produces 29 dis/s. Assuming all the radioactivity is due to 23®U, find the percent by mass of 23*U in the rock.