Question

When N₂ goes to N⁺₂ the N-N bond distance ...... , and when O₂ goes to O₂⁺ the O-O bond distance ......

Answer 1

When N₂ goes to N⁺₂ the N-N bond distance Increases, and when O₂ goes to O₂⁺ the O-O bond distance decreases; 

Explanation:

The molecular configurations of N₂ and O₂ are as follows

:. Bond order in N₂ = 1/2 (8 - 2) = 3 and bond order in N₂⁺ =1/2 (7-2) = 2.5

Thus conversion of N₂ to N₂⁺ decreases bond order (from 3 to 2.5) and hence increases the N-N bond distance.

Bond order in O₂ -  (8 - 4) = 2

and bond order in O₂⁺ = 1/2(8- 3)= 2.5 

Thus conversion of O₂⁺ to O₂⁺increases bond order (from 2 to 2.5) hence decreases O-O bond distance.