11. Lewis structure of NO₂⁺.

1. Compute the total number of valence shell electrons in all the atoms in the ion. (Compute the charge).

	Correct. The total number of electrons is 16 electrones.
	Wrong. Check the valence shell electrons of N and O. Compute the charge.
	Wrong. Check the valence shell electrons of N and O. Compute the charge.

2. Select the central atom.

	Correct. Is the less electronegative atom. central atom: N
	Wrong. The central atom is the less electronegative atom.

3. Compute the number of electrons used in single bonds:

	Wrong. Two N-O bonds require more than 2 electrons.
	Correct. Two N-O bonds require 4 electrons

4. Electrons needed to complet the octeto in the terminal atoms.

	Wrong. Four additional electrons to each O will only complete six electrons.
	Wrong. Five additional electrons to each O will only complete seven electrons.
	Correct. Six additional electrons to each O will complete eight electrons. Total 12 electrons

5. How many electrons are needed to complete the octeto in the central atom?

	Wrong. Two additional electrons to N will only complete six electrons.
	Wrong. Three additional electrons to N will only complete seven electrons.
	Correct Four additional electrons to N will complete eight electrons. Locate them

6. ¿Cuál será la geometría de este anión? Structures

	Correct. Two double bonds N=O. AX₂ environment
	Wrong. An angular structure corresponds to a AE₂X₂ environment.
	Wrong. An angular structure corresponds to a AEX₂ environment.

11. Lewis structure of NO2+.