sigma bond

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sigma bond

chemistry

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Chemistry at Davidson - Sigma Bonds

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Also known as: sigma compound

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Related Topics:: covalent bond

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sigma bond, in chemistry, a mechanism by which two atoms are held together as the result of the forces operating between them and a pair of electrons regarded as shared by them. In a sigma bond, the electron pair occupies an orbital—a region of space associated with a particular value of the energy of the system—located mainly between the two atoms and symmetrically distributed about the line determined by their nuclei.