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If the interatomic distance between 2 atoms is changed from the equilibrium position, then the nature of force will be _____________ when interatomic distance is decreased from equilibrium; and the nature of force will be _____________ when interatomic distance is increased.

If the interatomic distance between 2 atoms is changed from the equilibrium position, then the nature of force will be _____________ when interatomic distance is decreased from equilibrium; and the nature of force will be _____________ when interatomic distance is increased. Correct Answer repulsive, attractive

Physically, it can be interpreted as when the interatomic distance between 2 atoms reduces, their electron clouds starts overlapping. It causes very high repulsion between two atoms. As the distance increases from equilibrium atomic position, the Van der Waals attraction tries to bring the 2 atoms together and the nature of force will become attractive.

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