London dispersion

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lauraxie2e
Posts: 108
Joined: Fri Aug 09, 2019 12:17 am

London dispersion

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

What makes something have stronger London dispersion forces?

Chem_Mod
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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
Posts: 102
Joined: Sat Aug 17, 2019 12:17 am

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.

005384106
Posts: 101
Joined: Sat Aug 24, 2019 12:16 am

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
Posts: 105
Joined: Thu Jul 25, 2019 12:17 am

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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