Chapter 15, Problem 13RQ

Distinguish between a proton and a neutron in terms of electric charge.

To determine

The differences between a proton and a neutron in term of electric charges.

Answer to Problem 13RQ

The proton has charge $+1$, which is equal and opposite the charge on an electron while neutron has no net charge.

Explanation of Solution

Proton	Neutron
A proton has a positive unit charge.	A neutron is the sub-particle that has no charge.
The proton consists of 2 up quarks with 2/3 positive charge and one negative quark with a negative $1/3$ charge on it, that sum up to +1.	A neutron is made of 2 down quarks with a negative $1/3$ charge on each and one up quark with $2/3$ a positive charge on it, that sum to 0.

Conclusion:

Therefore, the proton has charge +1, which is equal and opposite the charge on an electron while neutron has no net charge.