1.3 Valence Bond Theory and Hybridization

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    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


    sp hybridization
    sp sp2 sp3 hybridization

    Sample Quiz - Molecular Structure and Bonding (14 Questions)

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