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 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 work showed that cathode rays consisted of particles that were much smaller than atoms, which was evidence for the existence of subatomic particles.

JJThomson Studied Cathode Ray Particles (Electrons)and Was Able to Measure