This technique involves injecting a malignant tumour with non-radioactive boron ... with the neutrons, triggering the release of high-energy alpha particles, comprising two protons and two ...

The atom is a complex system of particles. It's made up of a central nucleus consisting of protons and neutrons, called ...

For example, baryons, such as protons and neutrons, are combinations of three quarks bound tightly together by strong force-carrying gluons. When individual quarks are ripped from hadrons ...