Induced dipole vs permanent dipole

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Claire_Kim_2F
Posts: 67
Joined: Wed Sep 30, 2020 10:02 pm

Induced dipole vs permanent dipole

Postby Claire_Kim_2F » Wed Nov 11, 2020 3:25 pm

I was wondering if there is a difference between induced dipoles vs permanent dipoles from todays lecture? I think induced is from elements that have similar electronegativities and or are the same while permanent is from two dramatically different electronegativities and was wondering if that was right?

Melissa Solis 1H
Posts: 106
Joined: Wed Sep 30, 2020 10:08 pm

Re: Induced dipole vs permanent dipole

Postby Melissa Solis 1H » Wed Nov 11, 2020 3:32 pm

Hello! Yes you're correct. Permanent dipole moments arise when bonding occurs between elements of differing electronegativities, while the Induced (or temporary) dipole moments occur when an external electric field distorts the electron cloud of a neutral molecule.

Brianne Conway 1D
Posts: 91
Joined: Wed Sep 30, 2020 9:36 pm

Re: Induced dipole vs permanent dipole

Postby Brianne Conway 1D » Wed Nov 11, 2020 7:53 pm

Just as you said, permanent dipoles are from two atoms having different electronegativities (thus one atom will always be partially positive and the other partially negative). On the other hand, induced dipoles are temporary fluctuations in electron density that randomly cause dipoles to form.

Ashlen Bullock 1H
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Joined: Wed Sep 30, 2020 9:58 pm
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Re: Induced dipole vs permanent dipole

Postby Ashlen Bullock 1H » Wed Nov 11, 2020 9:37 pm

These are some really good explanations. Also, an induced dipole can be seen in dispersion bonds, while a permanent dipole can be seen in dipole-dipole bonds and ion-dipole bonds.


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