Different-looking N — H bonds in the Lewis structure for Ammonia (NH3)

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005199750
Posts: 32
Joined: Fri Sep 28, 2018 12:27 am

Different-looking N — H bonds in the Lewis structure for Ammonia (NH3)

Postby 005199750 » Mon Nov 19, 2018 6:41 pm

Hi everyone! Please refer to the following .jpg picture for my question: http://oer2go.org/mods/en-boundless/fig ... mmonia.jpg

This image shows a lewis structure for Ammonia (NH3). However, there is one regular bond (just a straight line), along with one cone-shaped bond, and one dashed bond. What do these three different shapes of bonds tell us? Why are these three separate N — H bonds drawn so differently? Lastly, do we have to draw lewis structures like this moving forward? Thanks so much!

Searra Harding 4I
Posts: 68
Joined: Fri Sep 28, 2018 12:29 am

Re: Different-looking N — H bonds in the Lewis structure for Ammonia (NH3)

Postby Searra Harding 4I » Mon Nov 19, 2018 6:52 pm

These are to show that the atoms are in different planes. They are facing this way because the lone pair makes the molecular shape trigonal pyramidal. Think back to the 3D model Dr. Lavelle showed us in lecture.

rachana_korapati3C
Posts: 39
Joined: Fri Sep 28, 2018 12:25 am

Re: Different-looking N — H bonds in the Lewis structure for Ammonia (NH3)

Postby rachana_korapati3C » Mon Nov 19, 2018 6:54 pm

The different bonds all essentially represent the same thing all they show is the 3D model of the molecule and how the atoms are all in different planes.

Nicklas_Wright_1A
Posts: 60
Joined: Fri Sep 28, 2018 12:23 am

Re: Different-looking N — H bonds in the Lewis structure for Ammonia (NH3)

Postby Nicklas_Wright_1A » Tue Nov 20, 2018 11:11 am

The bonds are all the same. They are just being shown in 3D. The dashed bond is going into the page and the conical shaped bond is coming out of the page.


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