What is the total number of valence electrons that need to be accounted for in the Lewis structure of carbon dioxide?

• 12

• 16

• 20

• 18

What is the first step in constructing the Lewis structure for molecular compounds made of non-metals?

• Bond the central atom to the outer atoms

• Fill the octet on the central atom

• Calculate the total number of electrons

• Add lone pairs to the central atom

How many electrons does each oxygen atom initially have in its vicinity before completing the octet?

• Two

• Eight

• Four

• Six

What is the purpose of moving electrons from oxygen to form a double bond with carbon?

• To decrease the total number of electrons

• To complete the octet for carbon

• To increase the number of electrons around oxygen

• To create a triple bond

What is the bond angle in the carbon dioxide molecule according to VSEPR theory?

• 109.5 degrees

• 120 degrees

• 90 degrees

• 180 degrees