Discuss the formation of N₂ molecule on the basis of MO theory. Predict its:
(i) Bond order
(ii) Magnetic character.

Write the stability configuration of  and predict their bond order, stability and magnetic character. 

Draw the molecular orbital energy diagram for oxygen molecule (O₂) and show that:
(i) It has a double bond
(ii) It has paramagnetic character.

Using a molecular orbital diagram, predict the bond order, stability and magnetic character of O₂^–,O₂⁺, and  . Also, write their electronic configurations.

Discuss the relatives stabilities, bond dissociation energies and bond lengths of O₂, 
 species. 
      

Is the bond order in superoxide ion more or less than in peroxide ion? Explain on the basis of MO theory.

Calculate the bond order of  molecular ions. 

238.

Using bond order show that N₂ would be expected to have a triple bond, F₂ a single bond and Ne₂ no bond.

Show that N₂ molecule has a greater bond dissociation energy than N^-₂ where O₂ has lower bond dissociation energy than O⁺₂.

Which of the following has higher bond dissociation energy and why?
(i) N⁺  (ii) O⁺