Definition of Ion. Meaning of Ion. Synonyms of Ion

Here you will find one or more explanations in English for the word Ion. Also in the bottom left of the page several parts of wikipedia pages related to the word Ion and, of course, Ion synonyms and on the right images related to the word Ion.

Definition of Ion

Ion
Ion I"on, n. [Gr. ?, neut, of ?, p. pr. of ? to go.] (Elec. Chem.) One of the elements which appear at the respective poles when a body is subjected to electro-chemical decomposition. Cf. Anion, Cation.
Ion
Ion I"on, n. 1. One of the electrified particles into which, according to the electrolytic dissociation theory, the molecules of electrolytes are divided by water and other solvents. An ion consists of one or more atoms and carries a unit charge of electricity, 3.4 x 10^-10 electrostatic units, or a multiple of this. Those which are positively electrified (hydrogen and the metals) are called cations; negative ions (hydroxyl and acidic atoms or groups) are called anions. Note: Thus, hydrochloric acid (HCl) dissociates, in aqueous solution, into the hydrogen ion, H^+, and the chlorine ion, Cl^-; ferric nitrate, Fe(NO3)3, yields the ferric ion, Fe^+++, and nitrate ions, NO3^-, NO3^-, NO3^-. When a solution containing ions is made part of an electric circuit, the cations move toward the cathode, the anions toward the anode. This movement is called migration, and the velocity of it differs for different kinds of ions. If the electromotive force is sufficient, electrolysis ensues: cations give up their charge at the cathode and separate in metallic form or decompose water, forming hydrogen and alkali; similarly, at the anode the element of the anion separates, or the metal of the anode is dissolved, or decomposition occurs. 2. One of the small electrified particles into which the molecules of a gas are broken up under the action of the electric current, of ultraviolet and certain other rays, and of high temperatures. To the properties and behavior of ions the phenomena of the electric discharge through rarefied gases and many other important effects are ascribed. At low pressures the negative ions appear to be electrons; the positive ions, atoms minus an electron. At ordinary pressures each ion seems to include also a number of attached molecules. Ions may be formed in a gas in various ways.

Meaning of Ion from wikipedia

- An ion (/ˈaɪ.ɒn, -ən/) is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this...
- Look up ion in Wiktionary, the free dictionary. In physics and chemistry, an ion is an atom or molecule with a net electric charge. Ion or ION may also...
- A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li+ ions into electronically conducting solids...
- Ion Television (referred to on-air as simply Ion) is an American broadcast television network and FAST television channel owned by the Scripps Networks...
- Ion Ion may refer to: Ion Ion (footballer), a former Romanian footballer Ion Aircraft Ion, a two-seat, twin boom, pusher configuration light aircraft...
- A polyatomic ion (also known as a molecular ion) is a covalent bonded set of two or more atoms, or of a metal complex, that can be considered to behave...
- The Ion Aircraft is a two-seat, twin boom, pusher configuration light aircraft based on the DreamWings Valkyrie. It was still in development in 2010 but...
- An ion thruster, ion drive, or ion engine is a form of electric propulsion used for spacecraft propulsion. An ion thruster creates a cloud of positive...
- Ion exchange is a reversible interchange of one species of ion present in an insoluble solid with another of like charge present in a solution surrounding...
- Ion implantation is a low-temperature process by which ions of one element are accelerated into a solid target, thereby changing the physical, chemical...