Drawing Lewis Structures

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Shannon Asay 1C
Posts: 102
Joined: Fri Aug 09, 2019 12:16 am

Drawing Lewis Structures

Postby Shannon Asay 1C » Wed Oct 30, 2019 9:11 pm

What are some general rules for drawing Lewis structures?

Fiona Latifi 1A
Posts: 102
Joined: Sat Sep 14, 2019 12:16 am

Re: Drawing Lewis Structures

Postby Fiona Latifi 1A » Wed Oct 30, 2019 9:18 pm

Generally, you would want to place the atom with the lowest electronegativity in the center of your lewis structure. Hydrogen can never be the central atom. To start your diagram, you should count the number of valence electrons for each atom so that you can determine how many electrons you need in total. Also, some compounds have multiple possible structures. The blend of these structures contributes to the resonance structure of the compound.

Sjeffrey_1C
Posts: 108
Joined: Wed Feb 20, 2019 12:17 am

Re: Drawing Lewis Structures

Postby Sjeffrey_1C » Wed Oct 30, 2019 9:45 pm

Generally, if there is a singular of one element and multiple of another, the singular one will go in the middle. For example, CCl4, NF3, H2O, etc.

alexfwang3g
Posts: 50
Joined: Thu Jul 11, 2019 12:16 am

Re: Drawing Lewis Structures

Postby alexfwang3g » Wed Oct 30, 2019 11:15 pm

Put the least electronegative element in the middle and the remaining elements around it. Then, count the total valence electrons and proceed accordingly.

sarahsalama2E
Posts: 164
Joined: Fri Aug 30, 2019 12:16 am

Re: Drawing Lewis Structures

Postby sarahsalama2E » Wed Oct 30, 2019 11:35 pm

Place the least electronegative element in the middle of the lewis structure. Also the single available element is in the middle of the structure.


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