(Polar molecules, Non-polar molecules, etc.)
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T shape will always mean polar... of the different trigonal bipyramidal orbital arrangements with the sp3d hybridization, only the trigonal bipyramidal with 5 attached atoms or the linear model with 2 bonded atoms and 3 lone pairs can be nonpolar given that their bonded atoms are the same.
Hi! I agree with the above post that every molecule that has a T-shape will be polar. Out of the four molecular shapes with 5 electron domains/density regions, two will always be polar: T-shape and see-saw. This is because the lone pairs of each cause an asymmetrical arrangement (dipole moments won’t cancel out). I hope this helps!
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