Resonance Structures

Define the term resonance structure

• Delocalization of electrons in an atom
• Delocalization of π electrons within a molecule
• Spread of π electrons in an atom
• Spread of π electrons within a molecule

How many resonance structure for SO₂ ?

• 1
• 2
• 3
• 4

Choose the electron dot diagram that correctly shows the bonding in methane CH_4.

• A

• B

• C

• D

Choose the electron dot diagram that correctly shows the bonding for the nitrite ion, NO₂^-:

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the formal charge on oxygen for the hydronium ion H₃O⁺?

• +3

• +1

• -2

• -3

• 0

Choose the electron dot diagram that correctly shows the bonding in H₂N₂:

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Are A and B resonance structures of each other?

• Yes

• No

• Cannot be determined from the information given

In the structure shown, which C-C bond is the strongest?

• a

• b

• c

• d

• e

Tags

NGSS.HS-PS1-4

Which of the compounds is/are aromatic?

• 
• 
• 

What is resonance?

• Lineal structure with different placement of atoms

• Lewis structure with different arrangement of electrons

• Lewis structure that are in equilibrium

• They are the same as isomers

Tags

NGSS.HS-PS1-1