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.