Problem: Sodium nitrite, which has been used to preserve bacon and other meats, is an ionic compound. Write the resonance forms of the nitrite ion, NO2–.

FREE Expert Solution

We are being asked to identify the resonance forms of nitrite (NO2-)

We will have to draw the Lewis Structure of NO2- first.


Step 1: Determine the central atom in this molecule.

    • N → less electronegative atom than O → central atom


Step 2: Calculate the total number of valence electrons present.          

NO2-:

           Group              Valence Electrons

 N         5A                    5 valence e
 O         6A                    
6 valence e- x 2
                                   = 17 valence e
      -1 charge                     +1 e­-

                                    Total = 18 valence e-


Step 3: Draw the Lewis Structure for the molecule

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Problem Details

Sodium nitrite, which has been used to preserve bacon and other meats, is an ionic compound. Write the resonance forms of the nitrite ion, NO2.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Resonance Structures concept. You can view video lessons to learn Resonance Structures. Or if you need more Resonance Structures practice, you can also practice Resonance Structures practice problems.