London dispersion

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London dispersion

Postby lauraxie2e » Mon Nov 18, 2019 3:27 pm

What makes something have stronger London dispersion forces?

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Re: London dispersion

Postby Chem_Mod » Mon Nov 18, 2019 3:28 pm

A greater partial charge due to a greater amount of electrons/larger atomic radius.

Chloe Alviz 1E
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Re: London dispersion

Postby Chloe Alviz 1E » Mon Nov 18, 2019 3:31 pm

The strength of London Dispersion Forces is determined by the polarizability - or how easy the electron cloud is distorted - of an atom. Remember that larger atoms have higher polarizabilities because more electrons means more shielding from nuclear charge. Therefore, the larger the molecule, the stronger the LDFs.

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Re: London dispersion

Postby 005384106 » Mon Nov 18, 2019 6:24 pm

How do you know if a molecule has London dispersion forced?

kim 2I
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Re: London dispersion

Postby kim 2I » Mon Nov 18, 2019 6:31 pm

London dispersion forces are present in between all molecules, despite the fact that those molecules are nonpolar or polar.

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