What was the result of Thomson experiment?

J.J. Thomson's experiment, conducted in 1897, resulted in the discovery of the electron as a subatomic particle. By using a cathode ray tube, he demonstrated that cathode rays were composed of negatively charged particles, which he called "corpuscles" (later known as electrons). This finding provided evidence for the existence of smaller components of atoms and led to the development of the "plum pudding" model of atomic structure, where electrons are embedded within a positively charged "soup." Thomson's work fundamentally changed the understanding of atomic theory and laid the groundwork for modern physics.