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| Elementary Matter Constituents Information1 #722546 The fundamental components of matter. They are called elementary because, to date, no one has found any evidence of a size or of an internal structure, despite the experiments studying them. An atom isn't an elementary particle, as it is made up of electrons, protons, and neutrons. Neither are nucleons, as they are made up of quarks. Conversely, electrons and quarks are elementary particles unless proven otherwise | |
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