Neutron

physics

A neutron is neutral because its internal quark charges sum to zero: one up quark (+2/3 e) and two down quarks (−1/3 e each) yield a total charge of zero. This precise balance...

Open article

physics-explainer

A neutron is neutral because its internal quark charges sum to zero: two down quarks each carry −1/3 e, and one up quark carries +2/3 e, producing a total electric charge of 0...

Open article