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 XeF4

Video: Drawing the Lewis Structure for XeF4

For the XeF4 Lewis structure we first count the valence electrons for the XeF4 molecule using the periodic table. Once we know how many valence electrons there are in XeF4 we can distribute them around the central atom and attempt to fill the outer shells of each atom.

The Lewis structure for XeF4 has a total of 36 valence electrons.

When we are done adding valence electrons we check each atom to see if it has an octet (full outer shell). We also need to check to make sure we only used the number of available valence electrons we calculated earlier (no more, no less).

The Lewis structure for XeF4 is a bit tougher since you have to take formal charges into account to find the best Lewis structure for the molecule. Remember that Xenon can have more than 8 valence electrons.


It is helpful if you:

  • Try to draw the XeF4 Lewis structure before watching the video.
  • Watch the video and see if you missed any steps or information.
  • Try structures similar to XeF4 for more practice.

List of Lewis Structures

Acetone BF3 BH4- BrF5 BrO3- C2H2 C2H4 ClO-
CH4 ClO2- ClO2 ClO4- CO CS2 H2O H3O+
HCl HNO3 I3- ICl4- IF5 N2 N3- NH2OH
NH3 NO2- NO2 NO3- O2 OF2 PCl5 PH3
PO33- PO43- SCl2 SF4 SF6 SO3 SO42- XeF2
XeF4