Lesson: Lewis Dots

How to Draw Lewis Dot to show valence electrons

By the end of this lesson, you should be able to draw Lewis Dots for elements.

​In the video, the 4 sides of a elemental symbols represents the S and the 3 p's orbitals. However, to draw the Lewis dots for an element correct, we will have to follow Aufbau principle, which states that all orbitals needs to be filled before doubling up electrons. So, there should be 1 dot in all four sides before doubling up the dots or electrons.

Multiple Choice

How many valence electrons are in a neutral atom of oxygen?

• 6

• 16

• 4

• 31

Multiple Choice

This is a correct dot diagram for oxygen (O)

• true
• false

Multiple Choice

How many valence electrons does chlorine have?

• 6
• 8
• 10
• 7

Multiple Choice

What does the got diagram of chlorine look like?

• The electron dot diagram of chlorine consists of the chemical symbol Cl in the center, with seven dots surrounding it.
• The electron dot diagram of chlorine consists of the chemical symbol Cl in the center, with five dots surrounding it.
• The electron dot diagram of chlorine consists of the chemical symbol Cl in the center, with eight dots surrounding it.
• The electron dot diagram of chlorine consists of the chemical symbol Cl in the center, with six dots surrounding it.

Draw

Draw the Lewis Dot for Chlorine.

​Lewis dot for Chlorine

Labelling

Label the number of valence electrons on the periodic table.

Drag labels to their correct position on the image

7

3

4

2

1

8

6

5