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A-LevelPhysicsNuclear physics9702/12 · Oct/Nov 2015 · Q401 Mark

A radioactive nucleus emits an α-particle or a β-particle, creating a product nucleus. Which decay process could create the product nucleus stated?

Aradioactive nucleus: ²²⁶₈₈Ra, decay: α, product nucleus: ²²⁴₈₆Rn
Bradioactive nucleus: ²³⁸₉₂U, decay: α, product nucleus: ²⁴²₉₄Pu
Cradioactive nucleus: ²²⁸₈₈Ra, decay: β, product nucleus: ²²⁸₈₇Fr
Dradioactive nucleus: ²³¹₉₀Th, decay: β, product nucleus: ²³¹₉₁Pa

✓ Correct answer

D: radioactive nucleus: ²³¹₉₀Th, decay: β, product nucleus: ²³¹₉₁Pa

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About this question

Topic
Nuclear physics, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source
A-Level Physics, Oct/Nov 2015 Paper 1 Variant 2, question 40.

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