Anelectron

Anelectron is a term sometimes used to describe an atomic or subatomic system that contains no bound electrons. In this sense, an anelectron is essentially a bare nucleus or a fully ionized ion with zero electrons.

In practice, anelectrons occur in environments where electrons are stripped away, such as hot plasmas found in stellar interiors, fusion devices, or laboratory ion traps. Hydrogen, for example, can exist as a bare proton (a hydrogen anelectron). The concept is also useful in discussions of highly charged ions and the behavior of matter under extreme ionization.

Because electrons mediate chemical bonding, an anelectron cannot participate in ordinary chemistry as a neutral atom. Its interactions are dominated by the electromagnetic field of the nucleus and by potential recombination with free electrons or capture processes that can restore neutral atoms or other ionic states. The lack of an electron cloud means there are no electronic energy levels or typical electronic transitions; any transitions observed are nuclear in nature or arise from ionization and recombination processes.

Observability and study typically occur through spectroscopic signatures of ions in plasmas or in controlled experiments that isolate highly charged ions. Researchers track charged-particle behavior, ionization states, and nuclear transitions rather than electronic spectra.

Notes: The term anelectron is not standard across all fields; more common terminology refers to bare nuclei or fully ionized ions. The concept is mainly a descriptor in discussions of ionized matter and high-energy environments. See also bare nucleus, fully ionized ion, ionization, nuclear transition.