U.S. Department of Energy

Pacific Northwest National Laboratory

Neutrons

Neutrons have no net charge, thus are much difficult to identify and study. Due to its lack of charge, the neutron wasn’t added to the atlas of subatomic particles until 1932. The neutron’s name originates from the Latin root for “neutral.” But, we know the quarks inside are charged, so nuclear scientists use high-energy electrons to understand the neutron’s interior and answer the question ‘how does that net neutrality come about?’

| Pacific Northwest National Laboratory