Irodov Problem 6.223

Physics · modern-physics

Problem

In a uranium ore the ratio of U238 nuclei to P132

^\circ

8 nuclei is = 2.8. Evaluate the age of the ore, assuming all the lead Pb2

^\circ

8 to be a final decay product of the uranium series. The half-life of U238 nuclei is 4.5.109 years.