Lone Pairs & Polarity

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

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Labiba Sardar 2A
Posts: 103
Joined: Sat Jul 20, 2019 12:15 am

Lone Pairs & Polarity

Postby Labiba Sardar 2A » Mon Nov 18, 2019 9:36 pm

Except for a molecule that has the VSEPR formula AX2E3 (linear shape), would all molecules with lone pairs be polar?

Jessica Castellanos
Posts: 102
Joined: Sat Aug 24, 2019 12:17 am
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Re: Lone Pairs & Polarity

Postby Jessica Castellanos » Mon Nov 18, 2019 9:40 pm

No, as long as the structure is still symmetrical the structure can have lone pairs.

jisulee1C
Posts: 149
Joined: Thu Jul 25, 2019 12:17 am

Re: Lone Pairs & Polarity

Postby jisulee1C » Mon Nov 18, 2019 9:46 pm

Polarity depends on the molecule. If the molecule has a symmetric shape and the dipoles cancel out then even molecules with lone pairs can be non polar. For example, another example of a non polar shape is square planar with four bonded atoms and two lone pairs of electron. But even symmetric shapes can be polar if the dipoles don't cancel out.

Pablo 1K
Posts: 118
Joined: Sat Feb 02, 2019 12:15 am

Re: Lone Pairs & Polarity

Postby Pablo 1K » Mon Nov 18, 2019 9:53 pm

Simply depends on the atoms in the molecule, play around with it to see if it does.


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