Exam-style question
Try this first
In beta decay, what happens to the lepton number?.
- A.It increases by one.
- B.It decreases by one.
- C.It remains the same.
- D.It becomes negative.
Model answer
What a good answer should say
- It increases by one.
Explanation
Why this works
During beta decay, a neutron decays into a proton and emits a beta particle (electron), which increases the lepton number by one, illustrating the conservation of lepton number in particle interactions.
Common mistake
No common mistake is linked to this question yet.