Question -
Answer -
Bond length is defined asthe equilibrium distance between the nuclei of two bonded atoms in a molecule.
Bond lengths are expressed in terms ofAngstrom (10–10 m) or picometer
(10–12 m) and are measuredby spectroscopic X-ray diffractions and electron-diffraction techniques.
In an ionic compound, the bond length is thesum 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).