what happens to the London force with increase in molecular size?
Answers
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Molecular Size
Larger and heavier atoms and molecules exhibit stronger dispersion forces than smaller and lighter ones. In a larger atom or molecule, the valence electrons are, on average, farther from the nuclei than in a smaller atom or molecule. They are less tightly held and can more easily form temporary dipoles.
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Answer: This may help you
Explanation:
a. Dispersion forces depend on distance. Larger molecules are farther apart and so the forces are smaller.
b. Dispersion forces arise from the attraction between the nuclei of atoms, and larger 1/4-) molecules have larger nuclei.
c. Dispersion forces arise from dipoles caused by the electron distribution being distorted. Larger molecules have more electrons and, therefore, more distortions and a bigger force.
d. Dispersion forces are all equal in magnitude: there is no size dependence.
e. Heavier atoms have stronger attractions for each other than lighter atoms.