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electronegativity
(redirected from electropositive)

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electronegativity

A measure for the ease with which an atom can attract electrons to itself. Electronegative elements attract electrons, so forming negative ions.

US chemist Linus Pauling devised an electronegativity scale to indicate the relative power of attraction of elements for electrons. Fluorine, the most non-metallic element, has a value of 4.0 on this scale; oxygen, the next most non-metallic, has a value of 3.5.

In a covalent bond between two atoms of different electronegativities, the bonding electrons will be located close to the more electronegative atom, creating a dipole.



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? Mentioned in ? References in periodicals archive
 
Bi in 3-coordination with oxygen appears to exist only in systems containing the electropositive alkaline-earth cations Ca and Sr.
Phase equilibria and crystallography of ceramic oxides by McMurdie, H.F. / Journal of Research of the National Institute of Standards and Technology
When this occurs the galvanic property of metals requires that the metal higher or more electropositive, such as magnesium, will corrode or "sacrifice" in preference to slower oxidizing metals, such as steel.
You can avoid boiler corrosion by O'Brien, James J. / Real Estate Weekly
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