Multiple choice

Which of the following is a fermion with an intrinsic angular momentum (spin) of half-integer value in units of ħ?

  1. Energy gap

  2. Hole

  3. Electron

  4. Electron-hole pair

  5. Recombination

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An electron has no known components or substructure. It is generally thought to be an elementary particle. An electron has a mass that is approximately 1/1836 that of the proton.