Is a proton a hadron?
Yes, a proton is a hadron.
A hadron is any particle made up only of quarks. A proton is made of two up quarks and one down quark; therefore, a proton is a hadron.

Yes, a proton is a hadron.
A hadron is any particle made up only of quarks. A proton is made of two up quarks and one down quark; therefore, a proton is a hadron.
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