Drawing shape based off of lewis structure

(Polar molecules, Non-polar molecules, etc.)

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Isabel Bellon 4F
Posts: 30
Joined: Fri Sep 28, 2018 12:27 am

Drawing shape based off of lewis structure

Postby Isabel Bellon 4F » Wed Nov 14, 2018 3:21 pm

For question 2E.3 part b, the book incorporates the shape of the molecule into the lewis structure by drawing the wedges. And I understand that we are not expected to draw the 3D model, but are we supposed to know how to draw the wedges? And if so, how do we know which atoms are positioned in the front or back?

kamalkolluri
Posts: 65
Joined: Fri Sep 28, 2018 12:17 am
Been upvoted: 1 time

Re: Drawing shape based off of lewis structure

Postby kamalkolluri » Wed Nov 14, 2018 3:23 pm

We don't need to know how to draw wedge and dash notation. We just need to understand that its a representation of the molecule's shape in 3D space. And it doesn't really matter where the atoms go I think

Isabel Bellon 4F
Posts: 30
Joined: Fri Sep 28, 2018 12:27 am

Re: Drawing shape based off of lewis structure

Postby Isabel Bellon 4F » Wed Nov 14, 2018 3:24 pm

Awesome, thanks for the help.

Nawaphan Watanasirisuk 3B
Posts: 58
Joined: Tue Nov 28, 2017 3:03 am

Re: Drawing shape based off of lewis structure

Postby Nawaphan Watanasirisuk 3B » Wed Nov 14, 2018 3:44 pm

I believe we don't need to be able to draw the wedge and shape model, and I dont think which atom goes to the front/back matters as long as their positions don't affect the angle/structure of the molecule.

Dana Wilks 3I
Posts: 30
Joined: Fri Sep 28, 2018 12:23 am

Re: Drawing shape based off of lewis structure

Postby Dana Wilks 3I » Wed Nov 14, 2018 5:21 pm

While we don't need to know how to draw the wedge and dash projections, they are helpful for understanding the 3-D visual of various molecular shapes since the lewis structures aren't necessarily accurate in that sense.


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