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Angular Shape

Posted: Wed Nov 14, 2018 6:18 pm
by Linyu Zeng 1H
What is an angular shape? Did I miss something in class? Is is just a bent version of Linear shape?

Re: Angular Shape

Posted: Wed Nov 14, 2018 6:52 pm
by bonnie_schmitz_1F
Angular shape is when there is a central atom with two bonded molecules and one lone pair.

Re: Angular Shape

Posted: Wed Nov 14, 2018 6:53 pm
by dgerges 4H
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

Re: Angular Shape

Posted: Wed Nov 14, 2018 7:39 pm
by Matthew Tran 1H
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).

Re: Angular Shape

Posted: Wed Nov 14, 2018 10:55 pm
by ran2000
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