Which statement about the quark change in beta decay is correct?

  1. Quarks are emitted from the nucleus
  2. Only the flavour of one quark changes
  3. Quarks turn into electrons directly without any boson
  4. All three quarks change
Answer

B) Only the flavour of one quark changes

Weak flavour change. SLO P-11-F-15 · Knowledge

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