4. Using Lewis theory, show and explain why nitrogen gas exists as a diatomic molecule. 5. For each molecule or ion complete the following: (a) Determine the total number of valence electrons available for bonding / electron-pairs available for bonding. (b) Draw the Lewis structure. (c) Determine whether the molecule exists as a resonance hybrid If it does, draw the resonance structures. If it does not, write "NA" for not applicable. ● ● (d) State the name of the molecular geometry (e) Draw the VSEPR representation of the molecular geometry using wedges and dashed lines where appropriate Include the bond angles. ●

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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.