(Polar molecules, Non-polar molecules, etc.)
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What is the difference between electron and molecular geometry?
Electron geometry describes the arrangement of electron groups. Molecular geometry describes the arrangement of atoms, excluding lone pairs. For example, in the case of a trigonal planar shape as defined by electron geometry, there are three bonds. If atoms are bonded at all three locations, the molecular shape is also called trigonal planar. However, if atoms are bonded at only two of the three pairs of electrons, leaving a free pair, the molecular shape is called bent.
Essentially, electron geometry includes lone pairs while molecular geometry excludes lone pairs in the VSEPR chart.
How do we know when the structure doesn't have an ED and when it is just the molecular geometry?
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