The antineutron, though neutral like the neutron, differs because:

  1. it has charge
  2. it is a lepton
  3. it has a different mass
  4. it is made of antiquarks
Answer

D) it is made of antiquarks

Opposite quantum numbers. SLO P-11-F-09 · Understanding

Physics MCQ · More Nuclear and Particle Physics MCQs · Practise