Xenon Tetrafluoride

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Madelyn Cearlock
Posts: 72
Joined: Fri Sep 28, 2018 12:19 am

Xenon Tetrafluoride

Postby Madelyn Cearlock » Sun Nov 25, 2018 5:04 pm

Will someone please explain to me how Xenon in Xenon tetrafluoride has 6 regions of electron density?

MichaelMoreno2G
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Xenon Tetrafluoride

Postby MichaelMoreno2G » Sun Nov 25, 2018 5:05 pm

I've been asking myself the same thing. If someone can please clarify I would greatly appreciate it.

Schem_student
Posts: 29
Joined: Fri Sep 28, 2018 12:19 am

Re: Xenon Tetrafluoride

Postby Schem_student » Sun Nov 25, 2018 5:10 pm

Xenon tetraflouride has 6 regions of electron density because of the two lone pairs on the central Xe in the lewis dot structure. If you add electrons of Xe(8 electrons) + 4 F (4x 7 electrons) = 36 electrons which could create 18 pairs. 16 pairs are taken by the bonding of Xe to the 4 Fluorines and to fufill the fluorines' octets. Then two more pairs are left to add to central atom creating a square planar molecular shape.

ryanhon2H
Posts: 60
Joined: Fri Sep 28, 2018 12:28 am

Re: Xenon Tetrafluoride

Postby ryanhon2H » Sun Nov 25, 2018 5:17 pm

Xenon is in Period 5 which is after Period 3, so it can be an exception to the octet rule and have more regions of electron density, which allows it to have 6 regions of electron density for XeF4


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