The VSEPR theory is used to predict the molecular shape and function of a molecule. The way the molecule arrange themselves will depend on the number of lone pairs and bonded entities. Remember that a lone pair is a pair of electrons not shared between atoms. In this class, we only learn about five types of molecular geometries: tetrahedral, trigonal pyramidal, bent, linear, and trigonal planar. Remember that symmetry will result in a nonpolar molecule so tetrahedral, linear, and trigonal planar molecules are nonpolar.
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