Physics (AS & A Level) · Oct / Nov 2025 · Paper 13 · Question 38
9702Atoms, nuclei and radiation
The diagram shows a sequence of radioactive decays involving three α-particles and a β– particle. 237/93 Np → Q → R → S → T What is nuclide T?
- A225/88 Ra
- B231/88 Ra
- C225/90 Th
- D229/90 Th
As printed in the paper
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Correct answer: A. 225/88 Ra
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