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Covalent bonds

См. также в других словарях:

  • Covalent superconductor — Covalent semiconductors are such solids as diamond, silicon, germanium, silicon carbide and silicon germanium where atoms are linked by covalent bonds. Most of those materials, at least in their bulk form, are well studied and rarely hit the… …   Wikipedia

  • Covalent bond — Covalent redirects here. For other uses, see Covalent (disambiguation). A covalent bond forming H2 (right) where two h …   Wikipedia

  • covalent bond — Chem. the bond formed by the sharing of a pair of electrons by two atoms. [1960 65] * * * Force holding atoms in a molecule together as a specific, separate entity (as opposed to, e.g., colloidal aggregates; see bonding). In covalent bonds, two… …   Universalium

  • Covalent radius — Types of radii Atomic radius Ionic radius Covalent radius Metallic radius Van der Waals radius edit The covalent radius, rcov, is a measure of the size of an atom that forms part of one covalent bond. It is usually measured either in …   Wikipedia

  • Covalent organic framework — The design and synthesis of crystalline extended organic structures in which the building blocks are linked by strong covalent bonds are core concepts of covalent organic frameworks (COFs). COFs are porous, and crystalline, and made entirely from …   Wikipedia

  • covalent bond — noun a chemical bond that involves sharing a pair of electrons between atoms in a molecule • Hypernyms: ↑chemical bond, ↑bond • Hyponyms: ↑double bond, ↑coordinate bond, ↑dative bond * * * noun : a nonionic chemical bond formed …   Useful english dictionary

  • covalent bond — UK [kəʊˌveɪlənt ˈbɒnd] / US [koʊˌveɪlənt ˈbɑnd] noun [countable] Word forms covalent bond : singular covalent bond plural covalent bonds chemistry a chemical bond between two atoms produced when electrons are shared …   English dictionary

  • covalent — adjective Date: circa 1926 of, relating to, or characterized by covalent bonds • covalently adverb …   New Collegiate Dictionary

  • Covalent radius of fluorine — The covalent radius of fluorine is a measure of the size of a fluorine atom; it is approximated at about 60 picometres. Since fluorine is a relatively small atom with a large electronegativity, its covalent radius is difficult to evaluate. The… …   Wikipedia

  • covalent bond — Bond Bond (b[o^]nd), n. [The same word as band. Cf. {Band}, {Bend}.] 1. That which binds, ties, fastens, or confines, or by which anything is fastened or bound, as a cord, chain, etc.; a band; a ligament; a shackle or a manacle. [1913 Webster]… …   The Collaborative International Dictionary of English

  • covalent — [kəʊ veɪl(ə)nt] adjective Chemistry relating to or denoting chemical bonds formed by the sharing of electrons between atoms. Often contrasted with ionic. Derivatives covalence noun covalency noun covalently adverb …   English new terms dictionary

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