Repulsion Strength

(Polar molecules, Non-polar molecules, etc.)

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Repulsion Strength

Postby Jeremy_Guiman2E » Tue Nov 13, 2018 9:07 pm

Why does repulsion strength occur in this way: lone-lone pair > lone-bonding pair > bonding-bonding pair?

Jennifer Torres 2L
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Re: Repulsion Strength

Postby Jennifer Torres 2L » Tue Nov 13, 2018 10:23 pm

I believe It would be caused by the levels of electric charge. lone pairs energy differs from bonded pairs which are more stable. Lone pairs have more mobility as well so their repulsion is stronger.

Veronica Soliman 4H
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Re: Repulsion Strength

Postby Veronica Soliman 4H » Wed Nov 14, 2018 12:53 am

You have to look at this in terms of covalent and ionic bonding.

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Re: Repulsion Strength

Postby Chem_Mod » Wed Nov 14, 2018 9:27 am

The electron density around lone pairs is more diffuse. Lone pairs essentially "take up more room" than electrons in bonds. As such, when two lone pairs are next to each other, the repulsion is greater. Then lone pairs next to bonds is not as much, and two bonds next to each other is less.

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