NO2 Structure and Valence Electrons

The video tutorial explains the process of drawing the Lewis structure for NO2. It begins by counting the valence electrons for nitrogen and oxygen, totaling 17. Nitrogen, being the least electronegative, is placed in the center with oxygens on either side. Initial bonds are formed, and electrons are distributed to fulfill the octet rule for oxygens. Since nitrogen lacks a full octet, a double bond is formed with one oxygen to get as close as possible to an octet for nitrogen. The tutorial concludes with the finalized Lewis structure for NO2.

How many valence electrons are there in total for NO2?

• 21

• 17

• 15

• 19

Which atom is placed at the center of the NO2 Lewis structure?

• Oxygen

• Nitrogen

• Hydrogen

• Carbon

What is the purpose of placing two electrons between atoms in the NO2 structure?

• To increase electronegativity

• To form a double bond

• To form a chemical bond

• To create a lone pair

How many valence electrons are used to fulfill the octet for each oxygen atom?

• 8

• 12

• 6

• 10

What adjustment is made to try to fulfill the octet for nitrogen in NO2?

• Removing electrons

• Adding more electrons

• Forming a triple bond

• Forming a double bond

What is the closest we can get to an octet for nitrogen in the NO2 structure?

• 8 electrons

• 7 electrons

• 6 electrons

• 5 electrons