J. J. Thomson studied cathode ray particles (electrons) and was able to measure the mass/charge ratio. His results showed that
A)the mass/charge ratio varied with as the cathode material was changed.
B)the charge was always a whole-number multiple of some minimum charge.
C)matter included particles much smaller than the atom.
D)atoms contained dense areas of positive charge.
E)atoms are largely empty space.

Question

Quizplus · Accepted Answer

Thomson's discovery of electrons proved that atoms were not indivisible and that matter included particles much smaller than the atom.

J J Thomson Studied Cathode Ray Particles (Electrons) and Was Able