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 OH- (Hydroxide Ion)

The hydroxide ion (OH-) results in basic solutions with a pH greater than 7.

There are 8 valence electrons available for the Lewis structure for OH-.

Remember to put brackets and a negative sign around the Lewis structure for OH- to show that it is an ion.

Video: Drawing the Lewis Structure for OH-

It is helpful if you:

  • Try to draw the OH- Lewis structure before watching the video.
  • Watch the video and see if you missed any steps or information.