Exploring Lewis Structures and Resonance in Ozone

The video tutorial explains resonance structures in Lewis structures, using the ozone molecule as an example. It details the process of drawing Lewis structures, highlighting the concept of resonance where a molecule can have multiple valid structures. The tutorial emphasizes the importance of the octet rule and how resonance structures can exist simultaneously, with the molecule oscillating between them.

What is a resonance structure in the context of Lewis structures?

• A structure with an odd number of valence electrons

• A structure that violates the octet rule

• A structure that represents multiple valid configurations of a molecule

• A structure with only single bonds

How many valence electrons does an oxygen atom have?

• 10

• 8

• 6

• 4

Tags

NGSS.HS-PS1-1

What is the total number of valence electrons in an ozone (O3) molecule?

• 24

• 18

• 30

• 12

Why is the initial Lewis structure with single bonds between oxygen atoms in O3 not correct?

• It forms a linear structure

• It has too few valence electrons

• It has too many valence electrons

• It does not satisfy the octet rule

What adjustment is made to the initial Lewis structure to satisfy the octet rule?

• Adding more single bonds

• Removing valence electrons

• Forming a double bond

• Changing the central atom

In the correct Lewis structure of O3, how many valence electrons does the central oxygen atom have?

• 8

• 6

• 7

• 9

Why can the ozone molecule exist in multiple resonance structures?

• Because it has more than three atoms

• Because it has an odd number of valence electrons

• Because it can form different types of bonds with equal probability

• Because it violates the octet rule

How do we represent the resonance structures of a molecule in a Lewis structure diagram?

• By drawing multiple structures with arrows between them

• By using dashed lines for bonds

• By drawing a single structure with all possible bonds

• By using different colors for different bonds

What does the double arrow between resonance structures indicate?

• The molecule is unstable

• The molecule oscillates between the structures

• The molecule has an odd number of electrons

• The molecule violates the octet rule

What rule is followed in the final correct Lewis structure of O3?

• The octet rule

• The single bond rule

• The duet rule

• The triple bond rule

Tags

NGSS.HS-PS1-1