lewis dot structures

What is the correct Lewis Dot Structure for ammonia NH3

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Which is the correct molecular structure for carbon dioxide?

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

• A
• B
• C
• D

Which of the following is the correct Lewis structure for the compound PBr₃?

• structure A
• structure B
• structure C
• structure D

Which of the following compounds has only single bonds?

• I only

• II only

• III only

• I and III

• III and IV

By replacing the element symbol, this could be a diagram of which element?

• Li

• Al

• C

• Be

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

• 2
• 8
• 6
• 18

Each line in a Lewis Structure represents __________ electron(s).

• 3
• 2
• 1
• 4

How many electrons should Lithium have around its Lewis dot model?

• 1
• 2
• 3
• 4

How many electrons should Beryllium have around its Lewis dot model?

• 1
• 2
• 3
• 4