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Drawing lewis structures

Posted: Sun Nov 03, 2019 10:46 pm
by Giovanni Anguiano-Gutierrez 3L
When we draw lewis structures, do we always have to draw the structure with the lowest formal charge?

Re: Drawing lewis structures

Posted: Sun Nov 03, 2019 10:50 pm
by zachary_nhem_4I
Our TA said to try to draw lewis structures with as many bond with a formal charge of 0 (especially on the central element)

Re: Drawing lewis structures

Posted: Sun Nov 03, 2019 10:54 pm
by 305376058
When drawing Lewis structures, I think you should try to draw the one with the lowest formal charge possible.

Re: Drawing lewis structures

Posted: Sun Nov 03, 2019 10:56 pm
by KTran 1I
The structure that has the lowest net formal charge is the most probable structure, however, it is important to note that some individual atoms may prefer to have a +/- formal charge due to their electronegativity relative to the other atoms in the molecule. For example, an oxygen atom with a 1- charge would be more representative of how oxygen acts when forming bonds.

Re: Drawing lewis structures

Posted: Sun Nov 03, 2019 11:46 pm
by Shail Avasthi 3C
Try and minimize your formal charges whenever you draw a Lewis structure, because this means that you have likely found the most stable structure.

Re: Drawing lewis structures

Posted: Sun Nov 03, 2019 11:48 pm
by 005162520
How do we determine when an atom prefers a +/- formal charge based on their electronegativity? Are we suppose to know based on the periodic table?