atomic radius


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atomic radius

[ə′täm·ik ′rād·ē·əs]
(physical chemistry)
Also known as covalent radius.
Half the distance between the nuclei of two like atoms that are covalently bonded.
The experimentally determined radius of an atom in a covalently bonded compound. Also known as covalent radius.
References in periodicals archive ?
At the present time there are many versions of the periodic tables of elements, where each cell contains a property of a respective element (such as atomic radius, volume, density, first ionization potential, etc.
Secondly, the periodic table application permits students to create periodic table plots, such as atomic weight versus atomic radius, and graph them to view trends.
Thus helium, with two protons, has the smallest atomic radius and is followed by hydrogen.
n] is independent of n at distances from the origin of the order of the atomic radius.
We don't think of it that way, but in fact, if you really take us apart, our engineering specification is about one-tenth of an atomic radius.
It was indeed found that all of the points (each the average of many independent measurements) seemed to fall on a number of distinct straight lines passing through the origin of a plot of activation energy versus atomic radius.
By typing 'F1', you can call up a menu that provides information on melting point, boiling point, density, heat of fusion, heat of vaporization, heat capacity, first through fourth ionization energies, electrical resistivity, atomic radius, ionic radii, covalent radius, van der Waal's radius, oxidation states, natural isotopes, or discovery for the current element.

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