Question 2E.11) d

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Isabel Day 1D
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Joined: Fri Aug 09, 2019 12:15 am

Question 2E.11) d

Postby Isabel Day 1D » Sun Nov 17, 2019 1:49 pm

Question 2E.11 asks for the VSEPR model, shape, and formula for xenon trioxide. I know the formula is AX3E and the shape is trigonal pyramidal, but I don't understand why the bonds between xenon and oxygen are all double bonds in the structure. When I drew the structure, I found that there were 26 electrons and only single bonds were necessary. Am I missing something?

Haley Fredricks 1B
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Joined: Sat Aug 24, 2019 12:16 am
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Re: Question 2E.11) d

Postby Haley Fredricks 1B » Sun Nov 17, 2019 2:11 pm

If you check the formal charges, all are 0 when you use double bonds, so it is much more stable for the molecule to use double bonds instead of single bonds.

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