Commonly Tested Lewis Structures

To generate the Lewis dot structure, you have to follow the given steps: Find the total count of valence electrons to molecules. In this step, add the total count of valence electrons from all the atoms in a bit. Find the required count of electrons needed to make the atoms complete. The Lewis Electron Dot Structures Concept Builder is shown in the iFrame below. There is a small hot spot in the top-left corner. Clicking/tapping the hot spot opens the Concept Builder in full-screen mode. Use the Escape key on a keyboard (or comparable method) to exit from full-screen mode. Lewis Dot Structures ChemDoodle provides you with all the tools to build perfect figures of Lewis Dot Structures. Draw them yourself, or have ChemDoodle automatically create the Lewis Dot Structures for you! MolView is an intuitive, Open-Source web-application to make science and education more awesome!

• Read my article in Science Education based on my dissertation.

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.

Video: Drawing the Lewis Structure for ICl₄^-

For the ICl4- Lewis structure the total number of valence electrons (found on the periodic table) for the ICl4- molecule. Once we know how many valence electrons there are in ICl4- we can distribute them around the central atom with the goal of filling the outer shells of each atom.

In the Lewis structure of ICl4- there are total of 36 valence electrons.

Since Iodine (I) is below Period 3 on the periodic table it can hold more than 8 electrons. In the Lewis structure for ICl4- the Iodine atom has 12 valence electrons.

Also note that you should put the ICl4- Lewis structure in brackets with as 1- on the outside to show that it is an ion with a negative one charge.

It is helpful if you:

• Try to draw the ICl₄^- Lewis structure before watching the video.
• Watch the video and see if you missed any steps or information.
• Try structures similar to ICl₄^- for more practice.

List of Lewis Structures

Lewis Dot Structure Generator