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Unformatted text preview: common space between the nuclei, forming a covalent bond There is an optimum distance between two bonded nuclei in covalent bonds: As the 1s orbitals of the hydrogen start to overlap there is a reduction in the potential energy of the system (due to the increase in electron density between the two positively charged nuclei) As the distance decreases further, repulsion between the nuclei becomes significant at short distances The internuclear distance at the minimum potential energy corresponds to the observed bond length Therefore: The observed bond length is the distance at which the attractive forces (nuclei for bonding electrons) is balance by the repulsive force (nuclei vs. nuclei; and additionally, electron vs. electron)...
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