Question

What is inside a proton ??

Answer 1

Explanation:

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Protons contain two up quarks and one down quark.

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Answer 2

Answer:

Protons are composite particles composed of three valence quarks: two up quarks of charge +23e and one down quark of charge −13e. The rest masses of quarks contribute only about 1% of a proton's mass.

Explanation:

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