The Discovery of the Electron #Electron #JJThomson #Physics

How was the electron discovered? Before the discovery of the electron, scientists believed the atom was indivisible. That changed in 1897 when J. J. Thomson performed a series of experiments using cathode rays. He observed that these rays: • Traveled from the negative electrode • Were deflected by electric and magnetic fields • Behaved like negatively charged particles From these observations, Thomson concluded that atoms contain tiny negatively charged particles. These particles were later called electrons. This discovery was revolutionary because it showed: Atoms are not indivisible. They contain smaller particles. Thomson’s work marked the birth of modern particle physics and completely changed our understanding of matter. #Electron #JJThomson #Physics #Chemistry discovery of electron explained, jj thomson electron discovery, cathode ray experiment simple explanation, history of atomic theory, how electron was discovered, jj thomson cathode rays, first subatomic particle discovered, electron discovery chemistry, atomic structure history, science history electron