structure SF4

(Polar molecules, Non-polar molecules, etc.)

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Alysia Garcia 1B
Posts: 40
Joined: Wed Feb 21, 2018 3:02 am

structure SF4

Postby Alysia Garcia 1B » Sun May 27, 2018 10:22 pm

For this molecule, why would the F atoms not be spread evenly around the S atom?

Tarek Abushamma
Posts: 30
Joined: Fri Apr 06, 2018 11:01 am

Re: structure SF4

Postby Tarek Abushamma » Sun May 27, 2018 10:28 pm

The lone pair takes up space, so you could not arrange the fluorine atoms in a tetrahedral shape.

Chris Fults 1C
Posts: 27
Joined: Wed Nov 15, 2017 3:01 am

Re: structure SF4

Postby Chris Fults 1C » Sun May 27, 2018 10:32 pm

It is because there is a lone pair around Sulfur. The electrons want to be the furthest away possible from each other which is why the lone pair is usually above the central atom with the four fluorides being less than 90-degrees from each other. The lone pair is not counted so equatorial the angle is less than 120 degrees.

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