When sodium and oxygen react, one of the products obtained is sodium peroxide, Na2O2. The anion in this compound is the peroxide ion, O22- . Write the electron configuration for this ion in molecular orbital terms, and then compare it with the electron configuration of the O2 molecule with respect to the following criteria: (i) magnetic character (ii) net number of sigma and pi bonds (iii) bond order (iv) oxygen–oxygen bond length

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Quantum Mechanical Treatment of the Valence Bond Theory

Quantum mechanical treatment of valence bond theory refers to the relationship established between the quantum mechanical theory and the valence bond theory to describe the chemical bonding in a particular molecule.