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O-LevelPhysicsNuclear Physics5054/12 · Oct/Nov 2016 · Q401 Mark

A nucleus of uranium ²³⁸₉₂U decays to thorium by emitting an alpha-particle. What is the resulting thorium nucleus?

A²³⁴₉₀Th

B²³⁶₉₀Th

C²³⁸₉₃Th

D²³⁹₉₂Th

✓ Correct answer

A: ²³⁴₉₀Th

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About this question

Topic: Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2016 Paper 1 Variant 2, question 40.

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