Induced Dipole vs Dipole

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AJ Manzano 3K
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Induced Dipole vs Dipole

Postby AJ Manzano 3K » Wed Nov 07, 2018 8:36 pm

How do we know the difference between a dipole and an induced dipole? Is it something we have to solve for ourselves in a problem, or is that something we just have remember?

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Joined: Fri Sep 28, 2018 12:16 am

Re: Induced Dipole vs Dipole

Postby klarratt2 » Wed Nov 07, 2018 9:14 pm

A dipole molecule is a molecule made of atoms that have significantly different electronegativities. In HCl, for example, Cl has a much higher electronegativity than H, so it will attract electrons more strongly. This creates a permanent dipole in which one side of the molecule (the Cl) is partially negative and the other side (the H) is partially positive.

An induced dipole is when a (partial) positive or negative charge is brought near a nonpolar molecule and disturbs the arrangement of electrons in the nonpolar species. The electrons in this nonpolar species develop a dipole (one side has more electrons than another), so it is called an induced dipole because the dipole was induced by another charged atom/molecule.

Return to “Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)”

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