An ion is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by … See more

Ions can be non-chemically prepared using various ion sources, usually involving high voltage or temperature. These are used in a … See more

• Air ioniser
• Aurora
• Electrolyte
• Gaseous ionization detector
• Ioliomics
• Ion beam See more

The word ion was coined from neuter present participle of Greek ἰέναι (ienai), meaning "to go". A cation is something that moves down (Greek: κάτω, kato, meaning "down") and an anion is something that moves up (Greek: ἄνω, ano, meaning "up"). … See more

Ions in their gas-like state are highly reactive and will rapidly interact with ions of opposite charge to give neutral molecules or ionic … See more

Denoting the charged state
When writing the chemical formula for an ion, its net charge is written in superscript immediately after the … See more