Which of the following particles orbits around the nucleus of an atom?

Electrons are the particles that orbit around the nucleus of an atom. In atomic structure, the nucleus, which contains protons and neutrons, is surrounded by a cloud of electrons. These electrons occupy various energy levels or orbitals at different distances from the nucleus, and their arrangement plays a crucial role in the chemical behavior of an atom. The movement of electrons around the nucleus is governed by principles of quantum mechanics, which dictate that electrons exist in regions of probability rather than fixed paths.

Neutrons and protons, on the other hand, are located within the nucleus itself. Neutrons contribute to the mass of the atom and are neutral in charge, while protons are positively charged and determine the atomic number and identity of the element. Positrons are the antimatter counterparts of electrons and are not typically found in atomic structure under normal conditions.