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atomic orbitals.explain
According to the Valence Bond theory, chemical bond results from the overlap of two half-filled orbitals with spin pairing of the two valence electrons (or less commonly the overlap of a completely filled orbital with an empty orbital).
When two atoms come into close proximity their orbitals overlap producing an area of high electronic probability density and a molecular orbital is formed where the atoms are held together by electrostatic attraction between the positively charged nuclei and negatively charged electrons. MOT explains the formation of molecular orbitals through a linear combination of atomic orbitals (LCAO). These LCAOs are useful in the estimation of the formation of these orbitals in the bonding between the atoms that make up a molecule.
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