Question

Resonance structure of
NO2.​

Answer 1

Answer:

Resonance structures of NO2-

Lets draw the two resonance structures for the nitrite anion NO2-

Lewis structure of nitrite ion (NO2-)

lewis structure of NO2-

Lewis structure of NO2- ion is important because it is required to draw resonance structures.

Lone pairs, charges and bonds of NO2- ion

When we draw resonance structures, we convert lone pairs to bonds and bonds to lone pairs if it is possible.

In lewis structure NO2- ion, there are three lone pairs (in the last shell) in one oxygen atom and that oxygen atom is joint with nitrogen atom by a single bond. Also, that oxygen atom has a -1 charge.

There is another oxygen atom. That oxygen atom is connected to the nitrogen atom by a double bond has two lone pairs in its last shell. Also, there is no charge in that oxygen atom.

On nitrogen atom, there is only a single lone pair. There is no charge on nitrogen atom too.

Steps to draw resonance structures for NO2-

You can convert a lone pair of one oxygen atom which already has three lone pairs to make a bond with nitrogen atom. With that, total electrons around nitrogen atom is going to be ten. It is going to break octal rule because nitrogen atom cannot keep more than eight electrons in its last shell. Then, what will do?

Now, we convert a bond (in the double bond) between nitrogen atom and other oxygen atom to a lone pair on oxygen atom.

Answer 2

here is the answer for NO2-