Commonly Tested Lewis Structures

We draw Lewis Structures to predict:

-the shape of a molecule.

-the reactivity of a molecule and how it might interact with other molecules.

-the physical properties of a molecule such as boiling point, surface tension, etc.

Drawing the Lewis Structure for NH3 (Ammmonia)

Ammonia (NH3) is a commonly tested Lewis structure due to it's widespread use in agriculture as a fertilizer. It also is a good example of a molecule with a trigonal prymidal molecular geometry.

There are 8 valence electrons available for the Lewis structure for NH3.

Video: Drawing the Lewis Structure for NH3

It is helpful if you:

  • Try to draw the NH3 Lewis structure before watching the video.
  • Watch the video and see if you missed any steps or information.
  • For more help, watch this general tutorial on drawing Lewis Structures for compounds like the Ammonia molecule.