Physics 9702 · AS & A Level · Atoms, nuclei and radiation

Atoms, nuclei and radiation — practice question

What quark composition does a hydrogen-3 nucleus, $^3_1\text{H}$, have?

  • Aup quarks: $4$, down quarks: $5$
  • Bup quarks: $5$, down quarks: $4$
  • Cup quarks: $5$, down quarks: $7$
  • Dup quarks: $7$, down quarks: $5$

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