# U^238 decays into Th^234 by the emission of an a-particle. There follows a chain of further radioactive decays, either by alpha-decay or by bet

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U^238 decays into Th^234 by the emission of an a-particle. There follows a chain of further radioactive decays, either by alpha-decay or by beta-decay. Eventually a stable nuclide is reached and after that, no further radioactive decay is possible. which of the following stable nuclides is the end product of the U^238 radioactive decay chain ?
A. P b^(206)
B. P b^(207)
C. P b^(208)
D. P b^(209)`

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Correct Answer - A