A-LevelPhysicsNuclear physics9702/12 · May/June 2020 · Q391 Mark
An unstable nucleus goes through successive decays to become a final, stable nucleus. The initial nucleus and the final nucleus are isotopes of each other. How many α and β⁻ particles could have been emitted during the decay sequence? [Figure 39.1]
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A1, 0
B1, 2
C2, 0
D2, 1
✓ Correct answer
B: 1, 2
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