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Molecular geometry and bonding theories (Multiple bonds (single ->…
Molecular geometry and bonding theories
Molecular Shapes
Determined by bond angles
AB2 linear (180)
AB3 trigonal planar (120)
AB4 tetrahedral (109.5)
AB5 trigonal bypiramid al (90/120)
AB6 octahedral (90)
The VSEPR Model
3D lewis structure
electron geometry
electrons & molecules
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molecular geometry
just molecules
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Molecular Shape and Molecular Polarity
Polar
pulls in a certain direction
Nonpolar
equal pull away from center
Covalen Bonding & orbital overlap
valence bond theory
overlapping atoms form covalent bonds
Hybrid Orbitals
s orbital + p orbital = hybrid orbital
How to predict
draw lewis structure
determine electron geometry
number of orbitals = # outer atoms
Multiple bonds
single -> signma
double -> sigma + pi
triple: sigma + 2pi
Molecular orbitals
