ion


Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.

ion

 [i´on]
an atom or group of atoms having a positive (cation) or negative (anion) electric charge by virtue of having gained or lost an electron; substances forming ions are called electrolytes. adj., adj ion´ic.
dipolar ion an ion that has both positive and negative regions of charge.
hydrogen ion the positively charged hydrogen atom (H+), which is the positive ion of all acids. See also hydrogen ion concentration.
hydroxyl ion the negatively charged group, OH, present to excess in alkaline solutions.

i·on

(ī'on),
An atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. Ions charged with negative electricity (anions) travel toward a positive pole (anode); those charged with positive electricity (cations) travel toward a negative pole (cathode). Ions may exist in solid, liquid, or gaseous environments, although those in liquid (electrolytes) are more common and familiar.
[G. iōn, going]

i·on

(ī'on)
An atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. Ions charged with negative electricity (anions) travel toward a positive pole (anode); those charged with positive electricity (cations) travel toward a negative pole (cathode). Ions may exist in solid, liquid, or gaseous environments, although those in liquid (electrolytes) are more common and familiar.
[G. iōn, going]

ion

An electrically charged atom, group of atoms, or molecule. A positive ion is an atom that has lost an electron; a negatively charged ion is one that has gained an electron. See also IONIZATION.

ion

an atom that carries a charge due to loss or gain of electrons.

Ion

An atom or group of atoms that acquires an electrical charge by the gain or loss of electrons.

ion

(ī'on)
An atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. Ions charged with negative electricity (anions) travel toward a positive pole (anode); those charged with positive electricity (cations) travel toward a negative pole (cathode). Ions may exist in solid, liquid, or gaseous environments, although those in liquid (electrolytes) are more common and familiar.
[G. iōn, going]
References in periodicals archive ?
For more information on how ION PRO Services, LLC can offer you an improved schedule and reduced risk call us at 1.832.674.
The reduction in adsorption capacity is due to the interference of one metal ion with another, thererby decreasing sorption capacities of both [23].
According to the release, "the electrolyte, which belongs to a family of crystals called antiperovskites, contained positive ions made of three lithium atoms and one oxygen atom.
Metal atoms in the vapor trail get some of their electrons torn away by other charged atoms and molecules in the ionosphere, transforming the metal atoms into electrically charged ions.
How researchers will make use of the new finding is not yet known, she says, "but just knowing this is certainly very eye-opening." It would be interesting, she adds, to find out what happens to ion concentrations during REM sleep, when neurons are as active as they are when a person is awake.
The PVC samples will be used for ion implantation and irradiated with the accelerated lead ions at potentials 0 Volts, 100 volts and 300 volts.
[K.sub.d] = Amount of metal ion in resin phase/Amount of metal ion in solution phase x Volume of solution (m1)/Weight of dry resin ml [g.sup.-1] i.e.
The results obtained by the joint Indo-German research project open up the possibility of conducting future chemical experiments to generate molecular ions at temperatures as low as those that prevail in interstellar space.
The speedy ion generator removes in-vehicle odours such as cigarette smoke, musty car smells, pet and food odours clinging to the inside of the car.
This is volume IV of a mini-series devoted to theory and applications of mass spectrometry for the study of gaseous ions confined in ion traps.