1.3 Valence Bond Theory and Hybridization

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'Valence

Atomic Orbitals and Valence Bond Theory

Wave Functions (Ψ)

wave functions

Probability Functions (Ψ2)

probability functions

Sigma Overlap

End-to-end overlap of any 2 orbitals

All single bonds are sigma bonds

sigma overlap

Pi Overlap

Sideways overlap of 'p' orbitals

Pi bonds are only present in multiple bonds

pi overlap

VSEPR Theory and Hybridized Atomic Orbitals

2 sp 180o
3 sp2 120o
4 sp3 109.5o

-e- domains are bonded atoms (not number of bonds) or lone pairs of non-bonding electrons
-the bond angle decreases if the central element has non-bonding electrons and is in period two

Hybridization

sp hybridization
sp sp2 sp3 hybridization

Sample Quiz - Molecular Structure and Bonding (14 Questions)

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