If you are talking about the nucleus of an atom, the particles that 'orbit' around the nucleus are electrons.
The electron is the sub-atomic particle that orbits the nucleus of an atom of matter. For anti-matter the sub-atomic particle that orbits the nucleus is the anti-electron (positron).
The particle not found in the nucleus is the electron
That particle is an electron.
The sub-atomic particle that orbits the nucleus in an atom is called an electron.
This elementary particle is the electron.
Electron
electrons=you ding dong
because it is an electron which orbits the nucleus
Electrons have negligible mass and travel around the outside of the nucleus in orbits or energy levels.
An Electron
The answer to your question is an electron.
Electron is a negative sub atomic particle which revolves round the nucleus.