Lewis Dot Diagrams and Chemical Bonds

What is the correct Lewis Dot Structure for ammonia NH3

• 
• 
• 
• 

Which is the correct molecular structure for carbon dioxide?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-4

How many total valence electrons are participating in bonding in the molecule above?

• 8

• 4

• 2

• 3

Tags

NGSS.HS-PS1-2

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NH₃ has how many lone pairs?

• 0

• 1

• 2

• 3

CCl₄ has how many double bonds?

• 0

• 1

• 2

• 3

Carbonate (CO₃^2-) has how many double bonds?

• 0

• 1

• 2

• 3

Tags

NGSS.HS-PS1-3

In HCN (Carbon is usually the central atom) what kind of bond is between the C and N

• Single

• Double

• Triple

Which of the following elements are an exception to the octet rule and require less than 8 valence electrons?

• H

• Li

• Be

• B

• C

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2