Ion (comics), in fiction, otherwise known as the Green Lantern Kyle Rayner, a DC Comics superhero
Ion can also refer to an assembly language shell for TI calculators, such as the TI-83 and TI-83 Plus
In ancient Greece: ion (disambiguation) An ion is an atom or group of atoms with a net electric charge. ... Screenshot of Ion. ... 2003 ION2 at Spring Hill headquarters The Saturn ION is a compact car sold by General Motors Saturn marque. ... Ion is a fictional hero from the DC Comics universe, with the secret identity of Kyle Rayner. ...
Ion (mythology), also called Ionas, the son of Xuthus and Creüsa, daughter of Erechtheus
Ion (dialogue), a dialogue by Plato, between Socrates and Ion, a reciter of epic poems
Ion (play), a play by Euripedes on the relationship between humans and the gods, in which Ion is instead the son of Apollo
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A negatively charged ion, which has gained one or more electrons, is known as an anion, for it is attracted to anodes, and a positively charged ion, which has lost one or more electrons, is known as a cation (pronounced cat eye on), for it is attracted to cathodes.
In physics or chemistry, an ion is an electrically charged molecule or atom that has gained or lost electrons from its normal complement in a process known as ionization.
Ions were first theorized by Michael Faraday around 1830, to describe the portions of molecules that travel either to an anion or to a cation.