Please could you help me with the following problem. I havesubmitted it twice be

Question

Please could you help me with the following problem. I havesubmitted it twice before, and have received two conflictinganswers. Please would you provide me with the correct answeras well as an explanation. Thank-you.

Which of the following molecular oxygen ions would be expected tohave the largest bond enthalpy?

a. O2 (i.e.molecular oxygen)
b. O2 + (i.e.molecular oxygen with a +1 charge)
c. O2 2+ (i.e.molecular oxygen with a +2 charge)
d. O2 2- (i.e.molecular oxygen with a -2 charge)
e. O2 - (i.e.molecular oxygen with a -1 charge)

Explanation / Answer

            O2 - bond order = 2             O2+  - bond order = 2.5             O2+2 - bond order = 3             O2-2 - bond order = 1             O2- - bond order = 1.5        O2+ has highest bond enthalpy

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