Angular Shape

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

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Linyu Zeng 1H
Posts: 28
Joined: Fri Sep 28, 2018 12:19 am

Angular Shape

Postby Linyu Zeng 1H » Wed Nov 14, 2018 6:18 pm

What is an angular shape? Did I miss something in class? Is is just a bent version of Linear shape?

bonnie_schmitz_1F
Posts: 81
Joined: Fri Sep 28, 2018 12:24 am
Been upvoted: 1 time

Re: Angular Shape

Postby bonnie_schmitz_1F » Wed Nov 14, 2018 6:52 pm

Angular shape is when there is a central atom with two bonded molecules and one lone pair.

dgerges 4H
Posts: 65
Joined: Fri Sep 28, 2018 12:24 am

Re: Angular Shape

Postby dgerges 4H » Wed Nov 14, 2018 6:53 pm

Yeah that's basically it. An example is H2O where there's two lone pairs on oxygen which pushes down the Hydrogen atoms to make room

Matthew Tran 1H
Posts: 165
Joined: Fri Sep 28, 2018 12:16 am

Re: Angular Shape

Postby Matthew Tran 1H » Wed Nov 14, 2018 7:39 pm

Dr. Lavelle will most likely cover shapes that involve lone pairs instead of bonding pairs on Friday. In addition to describing the shape of a molecule with 2 bonding pairs and a lone pair, angular also describes the shape of a molecule with 2 bonding pairs and 2 lone pairs like H2O (tetrahedral electronic structure but angular shape).

ran2000
Posts: 66
Joined: Fri Sep 28, 2018 12:15 am

Re: Angular Shape

Postby ran2000 » Wed Nov 14, 2018 10:55 pm

Angular shape can exist in two forms:
1) 3 regions of electron density (1 lone pair and 2 bonded pairs- Sulfur dioxide)- it has a bond angle of less than 120 (around 117)
2) 4 regions of electron density (2 lone pairs and 2 bonded pairs- dihydrogen monoxide)- it has a bond angle of less than 109.5 (around 104-105)

Angular is also known as "bent" shape


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