Lone Pairs on Linear Molecule

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

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Edgar Khachatryan 3G
Posts: 20
Joined: Fri Jul 15, 2016 3:00 am

Lone Pairs on Linear Molecule

Postby Edgar Khachatryan 3G » Mon Oct 31, 2016 10:33 pm

Can a molecule have lone pairs and still be linear? Wouldn't AX2E1 or AX2E2 be Bent Shape? Thanks for the help.

bridgetfoy_1D
Posts: 23
Joined: Fri Jul 15, 2016 3:00 am

Re: Lone Pairs on Linear Molecule

Postby bridgetfoy_1D » Mon Oct 31, 2016 10:38 pm

No, lone pairs on a molecule would prohibit it from being linear shape. Both AX2E1 and AX2E2 are bent because of the effect of the lone pairs.

Edgar Khachatryan 3G
Posts: 20
Joined: Fri Jul 15, 2016 3:00 am

Re: Lone Pairs on Linear Molecule

Postby Edgar Khachatryan 3G » Mon Oct 31, 2016 10:41 pm

Actually, after researching it appears that a molecule with AX2E3 is a linear molecule. Take I3- for example.

Makenna Vulgas 1G
Posts: 20
Joined: Wed Sep 21, 2016 3:00 pm

Re: Lone Pairs on Linear Molecule

Postby Makenna Vulgas 1G » Wed Nov 02, 2016 2:00 pm

To add onto that, the 3 lone pairs of electrons around the central atom are arranged in a way where the electron repulsion, in a sense, cancels each other out. There is a force pushing from one side and a force pushing from the other side in order to produce a linear molecule with a bond angle of 180 degrees. But yeah the form AX2E3 is linear. A model with VSPER formula AX2E4 is also considered linear but we probably won't have to deal with that one.


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