This describes a photon quite well.
Protons have a positive charge. Electrons have a negative charge. Neutrons possess no charge.
The following are some of the quantities have been found to be conserved in all known cases: mass, energy, momentum, angular momentum, electric charge, color charge.
Neutrons are the subatomic particles that possess no electric charge. They are commonly found within atomic nuclei alongside positively charged protons.
The general term for an ion with an overall electric charge is "polyatomic ion." These ions are composed of multiple atoms covalently bonded together but possess a net electric charge.
Photons are the carrier particles of the electromagnetic force. They do not possess an electric charge but have both energy and momentum, allowing them to transfer the electromagnetic force between charged particles. This transfer occurs through the electromagnetic field interaction mediated by photons.
To say that electric charge is conserved means that the total amount of electric charge in a closed system remains constant over time. This principle is a fundamental aspect of electromagnetism and is supported by experimental observations.
Gamma radiation
Examples of conservable quantities include energy, momentum, charge, and angular momentum. These quantities remain constant in isolated systems, meaning they are conserved during interactions and transformations.
Neutrons are neutral particles because they do not possess a net electric charge. Electrons are negatively charged particles with a charge of -1.
Everything except mass, momentum, angular momentum and electric charge. These are the only properties that survive when matter enters a black hole, according to the "No-hair theorem".
Both mass and charge
Protons which possess a positive charge and neutrons which possess no electric charge are subatomic particles within the nuclei of atoms.