Lewis structure review

What is the Lewis dot structure for carbon dioxide (CO2)?

• O=C=O

• O-C-O

• C-O-C

• C=O=O

How many lone pairs of electrons are there in the Lewis structure of ammonia (NH3)?

• 3

• 2

• 1

• 0

In the Lewis structure for water (H2O), how many lone pairs of electrons does the oxygen atom have?

• 2

• 3

• 1

• 0

In the Lewis structure for carbon dioxide (CO2), how many double bonds are there?

• 0

• 2

• 3

• 1

How many valence electrons does an atom of oxygen have according to the Lewis and Kossel bonding theory?

• 6

• 8

• 4

• 2

How many valence electrons does the element silicon have?

• 14

• 4

• 3

• 32

Which of the following elements has the a Lewis Electron Dot structure as shown below?

• N

• Li

• I

• Fr

The atomic number for Calcium is 20, meaning that it has 20 electrons. What is the correct electron configuration for Calcium?

• Carbon

• Nitrogen

• Oxygen

• Fluorine