JAMB Chemistry 2007 Objective — Question 8

Question 8 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2007 Objective paper, with the correct answer and a full explanation.

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

A. Scattering X-particles
B. Discharge-tube experiment
C. Oil-drop experimentCorrect
D. Mass spectrometric experiment

Explanation

R. A. Millikan's oil-drop experiment measured the charge on an electron as -1.6 x 10^-19 C.

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