Thursday, 11 September 2014

Define the bond length

Define the bond length.

Bond length is defined as the equilibrium distance between the nuclei of two bonded atoms in a molecule.
Bond lengths are expressed in terms of Angstrom (10-10 m) or picometer (10-12 m) and are measured by spectroscopic X-ray diffractions and electron-diffraction techniques.
In an ionic compound, the bond length is the sum of the ionic radii of the constituting atoms (d = r+ + r-). In a covalent compound, it is the sum of their covalent radii (d = rA + rB).
bond lengthbond length

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