Lewis Structure of OSbCL3 and shape

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

Lewis Structure of OSbCL3 and shape

Postby Madelyn Cearlock » Mon Nov 19, 2018 1:25 pm

How do I determine the lewis structure and shape of the molecule OSbCL3?

Laura Gong 3H
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Joined: Fri Sep 28, 2018 12:26 am
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Re: Lewis Structure of OSbCL3 and shape

Postby Laura Gong 3H » Mon Nov 19, 2018 1:32 pm

For drawing the lewis structure of a molecule: count the number of valence electrons of each of the atoms and then arrange the molecules so that Sb is the central atom. From there fill in the octets and make sure there are the same number of valence electrons you counted from before. Check formal charges to determine whether or not your lewis structure is most favorable (lowest energy).

From the lewis structure, you can determine the molecular shape by counting the regions of electron density or by counting the number of lone pairs and bonding pairs on the central atom. Use the VSEPR model.

Anna O 2C
Posts: 98
Joined: Fri Sep 28, 2018 12:19 am

Re: Lewis Structure of OSbCL3 and shape

Postby Anna O 2C » Mon Nov 19, 2018 4:47 pm

Adding on^^ For the Molecular shape, you know that Sb is the central atom. From there, we have 2 Chlorines and 2 Oxygens attached to it. Since there aren't any lone pairs on the central atom we know that there are only 4 regions of electron density giving us AX4 which corresponds with a tetrahedral shape.


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