The following three Lewis structures can be drawn for N2O:

(a) Using formal charges, which of these three resonance forms is likely to be the most important?
(b) The N-N bond length in N2O is 1.12 Ã…, slightly longer than a typical N == N bond; and the N-O bond length is 1.19 Ã…, slightly shorter than a typical N==N bond. (Table 8.5) Rationalize these observations in terms of the resonance structures shown previously and your conclusion for part (a).

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TABLE 8.5 Average Bond Lengths for Some Single, Double, and Triple Bonds Bond C-C Bond Length (Å) 1.54 1.34 1.20 1.43 1.38 1.16 Bond Length (Å) 1.47 1.24 1.10 1.36 1.22 Bond N -N C N N-O O-O O-O 1.48 C-O 1.43 1.23 1.13 1.21