Chapter 6, Problem 18P

When one electron is added to an oxygen molecule, a superoxide ion $\left({\text{O}}_2^{-}\right)$ is formed. The addition of two electrons gives a peroxide ion $\left({\text{O}}_2^{2-}\right)$ . Removal of an electron from ${\text{O}}_2$ leads to ${\text{O}}_2^{+}$ .

(a) Construct the correlation diagram for ${\text{O}}_2^{-}$ .

(b) Give the valence electron configuration for each of the following species: ${\text{O}}_2^{+},{\text{O}}_2,{\text{O}}_2^{-},{\text{O}}_2^{2-}$ .

(c) Give the bond order of each species.

(d) Predict which species are paramagnetic.

(e) Predict the order of increasing bond dissociation energy among the species.