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Physics (AS & A Level) · Oct / Nov 2022 · Paper 12 · Question 39

9702Atoms, nuclei and radiation

Which two particles have opposite charges?

  1. Aalpha-particle and helium nucleus
  2. Bantiproton and beta-plus particle
  3. Cbeta-minus particle and electron
  4. Dpositron and proton

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Correct answer: B. antiproton and beta-plus particle

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