Particle and Universe ppt-Education Edition Elective (3-5) Courseware

Elective (3-5) "Particles and Universe" ppt Thomson discovered electrons in 1897, and Rutherford proposed the nuclear structure of atoms in 1911. Then we discovered photons and thought that "photons, electrons, protons, and neutrons" are inseparable particles that make up matter, so they are called "basic particles". So with the development of science and technology, are they still "real" particles?

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