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Which of the following statements is/are true? Select all that apply.

A. Focusing on one resonance structure, there is one single bond and two double bonds between the nitrogen and oxygen atoms.

B. There are two equally good resonance structures.

C. The actual ion has three identical bonds between the nitrogen and oxygen atoms that are somewhere between a double and single bond.

D. Focusing on one resonance structure, there is a +1 formal charge on the nitrogen atom, a 0 formal charge on one of the oxygen atoms, and a -1 formal charge on the other oxygen atom.

Answer :

Final answer:

Your question deals with the principle of resonance in the NO₂ ion. Both suggested resonance structures you've provided are indeed valid, and the actual ion's structure is an average of those two structures with a mix between a double and single bond. The formal charges for nitrogen and oxygen in these structures are also accurately stated.

Explanation:

The subject at hand concerns the phenomena of resonance in the nitrite ion (NO₂). Resonance theory allows us to picture the ion's structure by averaging two or more Lewis structures, also known as resonance forms, that have the same arrangement of atoms. For NO₂, it's impossible to draw a single Lewis structure with equivalent bonds and a nitrogen octet. We can, however, draw two equally good resonance structures.

When focusing on one resonance structure, one might see a single bond and double bond between the nitrogen and oxygen atoms, but the actual ion has three identical bonds that are a hybrid between a double and single bond. Looking over the formal charge across one of these structures, the nitrogen atom has a +1 formal charge, one oxygen atom has a 0 formal charge, and the remaining oxygen atoms hold a -1 formal charge. Thus, all the listed points in your question are correct.

Learn more about Resonance Structures here:

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