Which of the following describes a neutron?

a particle that is composed of one up quark and two down quarks
the positively charged central core of an atom
any particle that is composed of three quarks
a particle that is composed of two up quarks and one down quark

1 answer

The correct description of a neutron is:

a particle that is composed of one up quark and two down quarks.

This configuration gives the neutron its neutral charge, as the charges from the quarks balance out.