Exam-style question
Try this first
Which of the following pairs are examples of particle-antiparticle pairs?.
- A.electron and positron
- B.proton and neutron
- C.neutrino and antineutrino
- D.photon and gluon
Model answer
What a good answer should say
- electron and positron
Explanation
Why this works
An electron and its antiparticle, the positron, are a classic example of a particle-antiparticle pair, having opposite charge and other quantum numbers.
Common mistake
No common mistake is linked to this question yet.