Bent's rule provides a qualitative estimate as to how these hybridised orbitals should be constructed.
2.
Results from this approach are usually good, but they can be improved upon by allowing isovalent hybridization, in which the hybridised orbitals may have noninteger and unequal p character.
3.
They have central angles from 104?to 109.5? where the latter is consistent with a simplistic theory which predicts the tetrahedral symmetry of four sp 3 hybridised orbitals.
4.
On these concepts, Pauling developed hybridization theory to account for bonds in molecules such as CH 4, in which four sp?hybridised orbitals are overlapped by hydrogen's " 1s " orbital, yielding four sigma ( ? ) bonds.
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