covalent radius

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• 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 radius — kovalentinis spindulys statusas T sritis chemija apibrėžtis Atomo efektyvusis spindulys kovalentiniame junginyje. atitikmenys: angl. covalent radius rus. ковалентный радиус …   Chemijos terminų aiškinamasis žodynas

• 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 (disambiguation) — Covalent may refer to: Covalent bond, a type of chemical bond Covalent radius, half the distance between two covalently bonded atoms Covalent modulation, the alteration of protein structure by covalent bonding This disambiguation page lists… …   Wikipedia

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

• Atomic radius — Diagram of a helium atom, showing the electron probability density as shades of gray. The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the nucleus to the boundary of the… …   Wikipedia

• atomic radius — ▪ physics       half the distance between the nuclei of identical neighbouring atoms. An atom has no rigid spherical boundary, but it may be thought of as a tiny, dense positive nucleus surrounded by a diffuse negative cloud of electrons. The… …   Universalium

• Van der Waals radius — The van der Waals radius, r sub|w, of an atom is the radius of an imaginary hard sphere which can be used to model the atom for many purposes. It is named after Johannes Diderik van der Waals, winner of the 1910 Nobel Prize in Physics, as he was… …   Wikipedia

• Atomic radii of the elements (data page) — << Chemical elements data references Contents 1 Atomic radii 2 Notes 3 References 3.1 Atomic radius (empirical) …   Wikipedia

• 100 picometres — To help compare different orders of magnitude this page lists lengths between 10−10 m and 10−9 m (100 pm and 1 nm). Distances shorter than 100 pm 100 pm 1 angstrom 100 pm covalent radius of sulfur atom[1] 120 pm van der Waals radius of a neutral… …   Wikipedia

• Ronald Gillespie — Ronald J. Gillespie, C.M., (August 21, 1924), a chemistry professor at McMaster University, specializes in the field of Molecular Geometry in chemistry. Therefore, most of his research is theoretical. It was announced on the Governor General s… …   Wikipedia