The three quarks in any baryon must all have different:
A)baryon number.
B)colour charge.
C)electric charge.
D)lepton number.
E)spin.

Question

Quizplus · Accepted Answer

This is because of the principle of colour confinement, which states that quarks cannot exist on their own but must always be bound together in groups of two or three. In a baryon, the three quarks must combine to form a colour-neutral particle, and so they must have different colour charges. Baryon number, electric charge, lepton number, and spin can all be the same for different quarks in a baryon.

The Three Quarks in Any Baryon Must All Have Different