cation

enUK

cat·i·on

C0165400 (kăt′ī′ən)n. An ion or group of ions having a positive charge and characteristically moving toward the negative electrode in electrolysis.

[Greek kation, something going down, from neuter present participle of katienai, to go down : kat-, kata-, cata- + ienai, to go; see ei- in Indo-European roots.]

cat′i·on′ic (kăt′ī-ŏn′ĭk) adj.

cation

(ˈkætaɪən) n (General Physics) a positively charged ion; an ion that is attracted to the cathode during electrolysis. Compare anion[C19: from cata- + ion] cationic adj

cat•i•on

(ˈkætˌaɪ ən, -ɒn)

n. 1. a positively charged ion that is attracted to the cathode in electrolysis. 2. any positively charged ion (opposed to anion). [1825–35; < Greek katión, neuter of katiṓn, present participle of kateînai to go down =kat- cat- + eînai to go] cat`i•on′ic (-ˈɒn ɪk) adj.

cat·i·on

(kăt′ī′ən) An ion that has a positive charge. Hydrogen and ammonium ions are cations. Compare anion.

cation

An ion that carries a positive charge, which is attracted by the negatively charged electrode, the cathode, during electrolysis.

Thesaurus

Noun

cation - a positively charged ionhydrogen ion - a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleusion - a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electronsdiazonium - the univalent cation R-N:N- (where R is an aromatic hydrocarbon); found in salts that are used in manufacturing azo dyes

Translations

cation

enUK

cation

(kăt'ī`ən), atom or group of atoms carrying a positive charge. The charge results because there are more protons than electrons in the cation. Cations can be formed from a metal by oxidation (see oxidation and reductionoxidation and reduction,
complementary chemical reactions characterized by the loss or gain, respectively, of one or more electrons by an atom or molecule. Originally the term oxidation
..... Click the link for more information. ), from a neutral base (see acids and basesacids and bases,
two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water. Properties
..... Click the link for more information. ) by protonation, or from a polar compound by ionization. Cationic species include Na⁺, Mg⁺⁺, and NH₄⁺. The cations of the transition elementstransition elements
or transition metals,
in chemistry, group of elements characterized by the filling of an inner d electron orbital as atomic number increases.
..... Click the link for more information. have characteristic colors in water solution. Saltssalt,
chemical compound (other than water) formed by a chemical reaction between an acid and a base (see acids and bases). Characteristics and Classification of Salts

The most familiar salt is sodium chloride, the principal component of common table salt.
..... Click the link for more information. are made up of cations and anionsanion
, atom or group of atoms carrying a negative charge. The charge results because there are more electrons than protons in the anion. Anions can be formed from nonmetals by reduction (see oxidation and reduction) or from neutral acids (see acids and bases) or polar compounds
..... Click the link for more information. . See ionion,
atom or group of atoms having a net electric charge. Positive and Negative Electric Charges

A neutral atom or group of atoms becomes an ion by gaining or losing one or more electrons or protons.
..... Click the link for more information. .

cation

[′kat‚ī·ən] (chemistry) A positively charged atom or group of atoms, or a radical which moves to the negative pole (cathode) during electrolysis.

cation

a positively charged ion; an ion that is attracted to the cathode during electrolysis

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Words related to cation

noun a positively charged ion

Related Words