Protons and neutrons
A)have exactly the same mass.
B)have exactly the same charge.
C)are composed of the same number of quarks.
D)are fundamental particles.
E)are leptons.

Question

Quizplus · Accepted Answer

Protons and neutrons are both composed of quarks, but they contain different numbers of them. Protons are made up of two up quarks and one down quark, while neutrons have two down quarks and one up quark. Therefore, they do not have the same number of quarks.

Protons and Neutrons