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Topic: Arranging X-A-X bond angles  (Read 10046 times)

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Offline lou_skywalker

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Arranging X-A-X bond angles
« on: November 24, 2009, 03:29:00 PM »
Arrange the following AXn species in order of increasing X-A-X bond angles.
a) NF3, CF4, BeF2, OF2, BF3
b) SCl2, CO2, BrF5, O3, CH4

I came up with the Lewis structure of each one but have no idea what to do next...
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Offline cth

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Re: Arranging X-A-X bond angles
« Reply #1 on: November 24, 2009, 03:37:17 PM »
You have the Lewis structures. Good. Halfway there.  :)

From those structures, you can deduce their spatial geometry. Then, using the table in http://en.wikipedia.org/wiki/Bond_angle, find their angles.
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Offline orgoclear

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Re: Arranging X-A-X bond angles
« Reply #2 on: November 25, 2009, 01:35:06 AM »
Quote from: lou_skywalker on November 24, 2009, 03:29:00 PM
I came up with the Lewis structure of each one but have no idea what to do next...

Have you read about VSEPR theory ?
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