Molecular Geometry

Molecular Geometry - Molecular Geometry, using Lewis...

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Molecular Geometry, using Lewis Structures, the VSEPR and Valence Bond Theories These notes should not replace the reading of good text books. Physical and Chemical properties depend on the geometry of a molecule. Molecular Geometry (three dimensional structure) depends on the nature of the central atom (with or without d-orbitals): : the bonding electrons and the lone pairs around it. Use Lewis structures and the VSEPR theory: Valence Shell Electron Pair Repulsion, bonding electrons and lone pairs (the valence electrons) are placed on a sphere as far apart as possible Use Lewis structures and the Valence bond (VB) theory : Bonding electrons and lone pairs are accommodated in hybridized orbitals, as far apart as possible in three dimensional space For Molecular Geometry (Structure): the positions of the atomic nuclei will determine the geometry BP = Bonding Pairs, LP = Lone Pairs Electron Pair Geometry: AX 2 (2 BP) Molecular Geometry: Linear Examples Electron Pair Geometry: AX 3
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Molecular Geometry - Molecular Geometry, using Lewis...

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