The disintegration series (Thorium series) begins with Thorium-232 (). Which of the following stable isotopes represents the final end product of this specific series?

Question

The $4n$ disintegration series (Thorium series) begins with Thorium-232 (${}_{90}^{232}Th$). Which of the following stable isotopes represents the final end product of this specific series?

Prashant Kotian · Accepted Answer

Correct answer: C. The mass numbers of all members in the series are divisible by 4. exactly. Lead-208 is the final stable product of the Thorium series.

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