JAMB Chemistry 2007 Question 27

Question 27

Atomic Structure

Which experiment led to the measurement of the charge on an electron?

  1. A.Mass spectrometric experiment.
  2. B.Oil-drop experiment.
  3. C.Scattering α - particles.
  4. D.Discharge-tube experiment.
Show the answer and explanation

Answer: B (Oil-drop experiment.)

Explanation

Millikan's oil-drop experiment measured the charge on a single electron.