It is now time to take the next step in your relationship with compounds and represent them in what is called "Electron Dot and Lewis" Diagrams. YESS!! -insert confetti-
Now you must be asking how would you ever represent them in that way? Well I will start off by explaining exactly what a Lewis Diagram is.
A Lewis Dot Diagram is a diagram that shows the bonding between atoms of a molecule and the lone valence pairs in the molecule.
- The symbol of the element is in the center, and electrons are represented by dots surrounding it
- In total, there are 4 orbitals surrounding the element, each holding a maximum of 2 electrons
- 8 electrons represents a "closed shell" or "noble gas" configuration
Let's show the Lewis Diagram of Chlorine.
Chlorine has 7 valence electrons, therefore in the Lewis Diagram, there are 3 full orbitals and 1 half full orbital
These are the Lewis Diagrams for part of the Periodic Table
Now let's do an example of a Lewis Dot Diagram for a compound
-In order to complete it's outer shell to make it contain 8 valence electrons, atoms gain, lose, or share electrons
-Carbon, Nitrogen, Oxygen, and Fluorine always follow this rule
- In this case, Nitrogen needed 3 electrons, and fluorine only needs 1 electron, therefore, nitrogen shares 3 bonds with 3 fluorines
Now, this is the Structural form of NF3
AWESOME GUYS. : D
This is a video to help you further understand the Lewis Dot Diagrams: