A) \[{}_{82}P{{b}^{208}}\]
B) \[{}_{82}B{{i}^{209}}\]
C) \[{}_{82}P{{b}^{206}}\]
D) \[{}_{82}P{{b}^{207}}\]
Correct Answer: A
Solution :
The end product of thorium series is Pb-208.
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