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    Physics A-Level

    Nucleon quark composition

    What Nucleon quark composition means in Physics A-Level, as defined for OCR.

    Definition of Nucleon quark composition

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    Reference: OCR

    The proton has composition uud, two up quarks and one down quark, and the neutron has composition udd, one up quark and two down quarks.
    OCR · Fundamental particles (study guide)

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