1. Lewis Dot Structures

2. Valence Electrons
Valence electrons are the most important electrons because they determine reactivity
They are used in bonding
What are valence electrons?
Electrons on the outer most energy level
How can we easily find out the number of valence electrons?
Group Number

3. Representing Valence Electrons
Lewis Dot Structures
Because valence electrons are the most important, these are the only electrons we will show

4. How to Draw Lewis Dot Structures
Step 1: Write the element’s symbol
Step 2: Determine the number of valence electrons
Step 3: Start drawing a dot on the right side of the symbol
Step 4: Draw the rest of the dots by moving counter clockwise and putting 1 on each side

5. Example
Step 1:
Step 2: 7
Step 3:
Step 4: Cl