Lewis Dots Structures of Molecules

A covalent bond is

• a bond that shares electrons metallicaly
• A bond that shares electrons with non metals
• Metalloids bonding
• metals and nonmetals bonding

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

• A
• B
• C
• D

How many electrons can be used in the Lewis Structure for : NO₃ -

• 23
• 20
• 18
• 24

How many valence electrons are in Phosphorus?

• 15
• 4
• 5
• 31

How many electrons does each line indicate are shared?

• 1
• 2
• 3
• 4

What is the correct formula for this molecule?

• NH
• N₃H
• NH₃
• NH₄

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

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

In the correct Lewis structure for CH_4, how many unshared electron pairs surround the carbon?

• 2
• 8
• 0
• 4

In CO₂, how many UNSHARED pairs of electrons does each oxygen have?

• 2
• 1
• 4
• 6

When writing Lewis Structures, only __________ electrons are used.

• Inner shell
• Core 
• Valence
• Stable