WC. Composite Particles

WC. Composite Particles (general):

[Composite particles can of course be represented by combinations of basic particles. For the most common composites it makes sense to provide simpler designations.]

1. Atomic nuclei, composed of protons and (except in the case of hydrogen) neutrons

2. Atoms, composed of nuclei and electrons

See also WH. Hadrons Hadrons are a special type of composite particle.