(Polar molecules, Non-polar molecules, etc.)
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According to an answer in the textbook (2E.11 a), the bond angles for a see saw shape (SCl4) are the same as those for trigonal bipyramidal- 120 and 90 degrees. Shouldn't the angles be slightly less because of the lone pair?
The bond angles for trigonal bipyramidal are 180º, 120º, and 90º and the bond angles for seesaw should be slightly less than 120º and slightly less than 90º because of the lone electron pair. So, I think you're correct, but bond angles do differ according to different molecules.