The discovery of the electron as a subatomic particle was a result of

August 2018 NY Regents Chemistry Exam

4 The discovery of the electron as a subatomic particle was a result of
(1) collision theory
(2) kinetic molecular theory
(3) the gold-foil experiment
(4) experiments with cathode ray tubes

Solution: The discovery of the electron as a subatomic particle was a result of experiments with cathode ray tubes.

Answer: 4

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