Resonance Structures

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Marty Hockey
Posts: 47
Joined: Wed Sep 18, 2019 12:19 am

Resonance Structures

Postby Marty Hockey » Sun Oct 27, 2019 10:37 pm

When I am drawing Lewis structures such as NO3^-1, am I allowed to have a bar line that signals two electrons on the oxygen instead of two dots, or does it always have to be the two dots? It's faster and less tedious.

Ashley Kao 1H
Posts: 50
Joined: Thu Jul 25, 2019 12:16 am

Re: Resonance Structures

Postby Ashley Kao 1H » Sun Oct 27, 2019 10:41 pm

I don't think that we can replace the two electrons with bar lines because when we do use the bar line, it represents two electrons being shared between two elements as opposed to solely representing two electrons.

KSong_1J
Posts: 101
Joined: Thu Jul 11, 2019 12:17 am

Re: Resonance Structures

Postby KSong_1J » Sun Oct 27, 2019 10:42 pm

I think you have to use the dots to represent the two electrons on the oxygen

Ian Morris 3C
Posts: 101
Joined: Wed Sep 18, 2019 12:18 am

Re: Resonance Structures

Postby Ian Morris 3C » Sun Oct 27, 2019 11:02 pm

I wish that were the case, but I'm pretty sure you have to draw each electron as a dot unless it is being shared.

Eesha Sohail 1D
Posts: 100
Joined: Sat Aug 17, 2019 12:16 am

Re: Resonance Structures

Postby Eesha Sohail 1D » Sun Oct 27, 2019 11:06 pm

Is there a particular order the dots are written for each atom? Like, if I had an atom with 6 valence electrons, is there a specific way I must draw the electrons around the nucleus?

Alex Chen 2L
Posts: 86
Joined: Wed Sep 18, 2019 12:21 am

Re: Resonance Structures

Postby Alex Chen 2L » Sun Oct 27, 2019 11:16 pm

Eesha Sohail 1J wrote:Is there a particular order the dots are written for each atom? Like, if I had an atom with 6 valence electrons, is there a specific way I must draw the electrons around the nucleus?


Place the electrons on each side to individually first so that they are unpaired (for example Carbon has one dot for each of the four sides), and then add any remaining electrons to form lone pairs as necessary.


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