Io

an electrically charged particle - either an atom or molecule that is missing one or more electrons (negative ion), or an atom or molecule that has one or more extra electrons (positive ion).

low isp spacecraft engine uses an electrical charge to ionize a gas (xenon is commonly used) or heavy metal, which is then accelerated via an electrical field. There a number of different varieties. A very simple and robust low tech engine, however acceleration is minimal

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Similar to the Vulcanian Type but of Europan constitution. These worlds are geologically active due to varying degrees of tidal flexing. Often these worlds are so active, that their surface morphology changes within a century.

Chemical bond that results from the attraction of oppositely charged ions.

hand-held picotech weapon that fires a beam of high velocity electrically charged ions. Short range when used in an atmosphere

The process of knocking one or more electrons off a neutral atom or molecule, thus giving it an electrical charge. Occurs naturally in the interplanetary and interstellar medium, and also is applied in ion drive propulsion and in particle beam weapons

A gas in which many of the atoms have lost at least one electron, thus becoming ions.

minor star Iota Persei is surrounded by an asteroid belt that came to be inhabited by refugees, many from the nearby system of Bourgatov. This belt, colloquially known as The Iota evolved from a squatter camp The waning economy led to emigration, which in turn hastened the decay. The last (known) inhabitants left in 9300.