How many total valence electrons are used for the nitrite ion (NO2-)?

• 16

• 18

• 17

• 19

Which atom is placed at the center when arranging the atoms for NO2-?

• Hydrogen

• Nitrogen

• Oxygen

• Carbon

What is the term used for electrons that are not involved in bonding?

• Bonding electrons

• Free electrons

• Nonbonding electrons

• Valence electrons

How many electrons does nitrogen need to achieve an octet in the final step?

• 3

• 4

• 2

• 1

What additional element is included in the final Lewis structure for a polyatomic ion?

• A single bond

• Brackets with charge

• A double bond

• A triple bond