A-LevelPhysicsNuclear physics9702/12 · May/June 2012 · Q401 Mark
Radon ²²²₈₆Rn is the start of a decay chain that forms bismuth ²¹⁴₈₃Bi by alpha and beta emission. For the decay of each nucleus of radon, how many α-particles and β-particles are emitted?
Aα-particles: 1, β-particles: 1
Bα-particles: 2, β-particles: 1
Cα-particles: 1, β-particles: 2
Dα-particles: 2, β-particles: 2
✓ Correct answer
B: α-particles: 2, β-particles: 1
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