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Molecule Shapes

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What shape do you expect for molecules that meet the following descriptions?
a) A central atom with two lone pairs and three bonds to other atoms.
b) A central atom with two lone pairs and two bonds to other atoms.
c) A central atom with two lone pairs and four bonds to other atoms.

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A) A central atom with two lone pairs and three bond to other atoms will have a T-shaped molecule. The hybrid will be sp3d. An example will be ClF3 where the Cl atom has two lone pairs around it and 3 ...

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