Lone Pairs

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

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Shibhon_Shepard
Posts: 62
Joined: Wed Nov 15, 2017 3:04 am

Lone Pairs

Postby Shibhon_Shepard » Fri Dec 07, 2018 11:34 am

Only the lone pairs on the central atom affect the shape right? not the lone pairs on the other ones?

LaurenJuul_1B
Posts: 65
Joined: Fri Sep 28, 2018 12:17 am

Re: Lone Pairs

Postby LaurenJuul_1B » Fri Dec 07, 2018 11:39 am

yes. shape depends entirely on what is connected to the central atom. AlCl3, for example, is trigonal planar even though each of the chlorines has 3 pairs of lone electrons

Michael Novelo 4G
Posts: 64
Joined: Fri Sep 28, 2018 12:28 am

Re: Lone Pairs

Postby Michael Novelo 4G » Fri Dec 07, 2018 11:44 am

Correct when looking at molecular shape we only focus on what's surrounding the central atom and thats when we use the VSEPR Formula such as AX3E to indicate how many bonds and lone pairs (if any) are attached to the central atom. The lone pairs will cause repulsion which will change the bond angles and shape.

Rosha Mamita 2H
Posts: 63
Joined: Fri Sep 28, 2018 12:19 am

Re: Lone Pairs

Postby Rosha Mamita 2H » Fri Dec 07, 2018 6:04 pm

Only the bonds and lone pairs on the central atom determine the VSEPR shape of the molecule.

Danny Zhang 4L
Posts: 62
Joined: Fri Sep 28, 2018 12:26 am

Re: Lone Pairs

Postby Danny Zhang 4L » Fri Dec 07, 2018 7:10 pm

The only things that affect the shape of a molecule are the central atom's lone pairs and the bonds it formed.

Melissa Villanueva1K
Posts: 64
Joined: Wed Nov 15, 2017 3:01 am

Re: Lone Pairs

Postby Melissa Villanueva1K » Fri Dec 07, 2018 7:21 pm

Only the lone pairs on the central atom can have an affect in the geometry of the molecule. Such as the push or the pull of the surrounding atoms.


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