What do nutrons and protons have in common?

Protons, neutrons and electrons are all components af the atom.

Proton: 1,007 276 466 77(10) Atomic Mass units (u); positive electrical charge, component of the atomic nucleus, contain quarks and gluons

Neutron: 1,008 664 915 6 (6) atomic mass units (u), neutral, component of the atomic nucleus, contain quarks and gluons

Electron: 5,485 799 094 3(23).10-4 atomic mass units (u), negative electrical charge, component of the atom