What Is the Difference Between a Proton and a Neutron

question 36

Multiple Choice

What is the difference between a proton and a neutron in terms of their constituent quarks?

• A) A proton is made of two "up" quarks and a "down" quark, and a neutron is made of two "down" quarks and an "up" quark.
• B) A proton is made of two "down" quarks and an "up" quark, and a neutron is made of two "up" quarks and a "down" quark.
• C) A proton is made of three "up" quarks, and a neutron is made of three "down" quarks.
• D) A proton is made of three "down" quarks, and a neutron is made of three "up" quarks.

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