The radioactive series to which belongs is — Nuclear Chemistry and Radioactivity Chemistry Question
Question
The radioactive series to which ${}_{88}\text{Ra}^{224}$ belongs is
Answer: B
💡 Solution & Explanation
Dividing the mass number by 4 gives $224 / 4 = 56$ with a remainder of 0. This matches the $4n$ series formula, which is the Thorium series. Therefore, correct answer is B.
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