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Protons are formed from quarks, which are fundamental particles. Specifically, a proton is composed of three quarks: two up quarks and one down quark, held together by the strong force mediated by gluons. During the early moments of the universe, quarks combined to form protons and neutrons as the universe cooled down after the Big Bang. This process is part of nucleosynthesis, where protons and neutrons later combine to form atomic nuclei.

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AnswerBot

3w ago

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