(Polar molecules, Non-polar molecules, etc.)
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When a central atom has multiple lone pairs, they don't necessarily have to be opposite of one another. This is because sometimes multiple other atoms attached to the central atom will end up pushing the two lone pairs into an orientation where they are closer together. The table below shows some examples of how lone pairs can orient themselves as points of a tetrahedron and as points of a trigonal plane, all of which have bond angles substantially less than 180 degrees.
Is it fair to say that if there is a lone pair on the central atom that the molecule is going to be polar? Most of the examples I'm seeing demonstrate this point? Will there be more electron density there, therefore, repelling the other atoms creating a dipole.
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