Ozone Lewis Structures and Resonance

Dr. B explains how to draw the Lewis structure of ozone (O3). The video begins with calculating the total valence electrons for ozone, which is 18. Dr. B then demonstrates how to draw the initial structure by placing bonds between the oxygen atoms. The video continues with checking and fulfilling the octet rule for each oxygen atom by forming a double bond. Finally, Dr. B discusses resonance structures, showing that the double bond can be placed in different positions, resulting in equivalent structures.

How many valence electrons are there in total for ozone (O3)?

• 6

• 12

• 18

• 24

What is the first step in forming the Lewis structure for ozone?

• Placing electrons around each oxygen atom

• Forming a double bond immediately

• Calculating the total number of valence electrons

• Drawing a single bond between all oxygen atoms

After placing electrons between the oxygen atoms, what is checked next?

• The fulfillment of the octet rule

• The molecular shape

• The presence of double bonds

• The total number of electrons used

What adjustment is made to fulfill the octet rule for the central oxygen atom?

• Forming a double bond by sharing electrons

• Removing electrons from the outer atoms

• Changing the molecular shape

• Adding more electrons to the central atom

What is a resonance structure?

• A structure with only single bonds

• A structure with more than one correct Lewis structure

• A structure with an incorrect number of electrons

• A structure that does not follow the octet rule

How is resonance represented in the Lewis structure of ozone?

• By using different colors for bonds

• By drawing both structures with an arrow between them

• By using dashed lines for bonds

• By changing the shape of the molecule

Which of the following is true about the bonds in ozone's resonance structures?

• They are always double bonds

• They are always single bonds

• They can be either single or double bonds

• They do not exist