Chemistry: Lewis Structure Practice

What is the correct Lewis Dot Structure for ammonia NH3

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• 
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• 

Which is the correct molecular structure for carbon dioxide?

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

• 8

• 4

• 2

• 3

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

• A
• B
• C
• D

CO₂ has how many lone pairs?

• 0

• 1

• 2

• 3

• 4

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

What is the correct formula for this molecule?

• NH
• N₃H
• NH₃
• NH₄

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

• 2
• 8
• 6
• 18