Kata bahasa Indonesia
English word
TANDA HUBUNG
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
THESAURUS
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WORDNET DICTIONARY
Noun has 1 sense
- ion(n = noun.object) - a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons;
Derived form verb ionate1, adjective ionic1, verb ionise2, verb ionize2
CIDE DICTIONARY
, n. Array
- an atom or goup of atoms (radical) carrying an electrical charge. It is contrasted with neutral atoms or molecules, and free radicals. Certain compounds, such as sodium chloride, are composed of complementary ions in the solid (crystalline) as well as in solution. Others, notably acids such as hydrogen chloride, may occur as neutral molecules in the pure liquid or gas forms, and ionize almost completely in dilute aqueous solutions. In solutions (as in water) ions are frequently bound non-covalently with the molecules of solvent, and in that case are said to be solvated. According to the electrolytic dissociation theory, the molecules of electrolytes are divided into
ions by water and other solvents. Anion consists of one or more atoms and carries one unit charges of electricity, 3.4 x 10-10 electrostatic units, or a multiple of this. Those which are positively electrified (hydrogen and the metals) are calledcations ; negative ions (hydroxyl and acidic atoms or groups) are calledanions . - 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. [Webster 1913 Suppl.]
OXFORD DICTIONARY
, n. an atom or group of atoms that has lost one or more electrons (= CATION), or gained one or more electrons (= ANION).
Idiom
ion exchange the exchange of ions of the same charge between a usu. aqueous solution and a solid, used in water-softening etc. ion exchanger a substance or equipment for this process.
Etymology
Gk, neut. pres. part. of eimi go
THESAURUS
acid, acidity, agent, alkali, alkalinity, alloisomer, anion, antacid, atom, atomic model, base, biochemical, cation, chemical, chemical element, chromoisomer, compound, copolymer, dimer, electrocoating, electroetching, electrogalvanization, electrogilding, electrograving, electrolysis, electrolyte, electron, electroplating, element, galvanization, heavy chemicals, high polymer, homopolymer, hydracid, inorganic chemical, ionization, ionogen, isomer, macromolecule, meson, metamer, molecule, monad, monomer, neutralizer, nonacid, nonelectrolyte, nuclear atom, nuclear particle, nuclide, organic chemical, oxyacid, planetary shell, polymer, proton, pseudoisomer, quark, radical, reagent, shell, subshell, sulfacid, tagged atom, tracer, tracer atom, trimer, valence shell
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