Question: Thomson was convinced that he had discovered a subatomic particle, the electron, from the evidence that a. the charge-to-mass ratio was the same for all

Thomson was convinced that he had discovered a subatomic particle, the electron, from the evidence that

a. the charge-to-mass ratio was the same for all materials.

b. cathode rays could move through a vacuum.

c. electrons were attracted toward a negatively charged plate.

d. the charge was always 1.60  10 −19 coulomb.

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