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Molecular Shape

Posted: Sun Nov 11, 2018 10:12 pm
by Claudeth Martinez 1D
Hello,

How can I tell apart when it is linear or bent/angular? thank you!

Re: Molecular Shape

Posted: Sun Nov 11, 2018 10:30 pm
by Anna O 2C
I'm pretty sure a molecule is going to be linear as long as there aren't any lone pairs on the central atom. When the molecule is linear, there aren't any lone pairs taking up space and pushing the other attached atoms away, thus bending the molecular shape. I think this only applies to chains of atoms like CN or OCl2.

Re: Molecular Shape

Posted: Sun Nov 11, 2018 11:43 pm
by Ivan Tadeja 4B
If there are no lone pairs on the central atom, then the configuration is linear which means the bond angle will always be 180 degrees.

Re: Molecular Shape

Posted: Sun Nov 11, 2018 11:47 pm
by Jackie Ngo 1C
The difference between a bent molecule and a linear one is that the bent molecule has lone pairs whereas the linear one doesn't. This makes sense because the lone pair on the central atom creates a charge that pushes the outside atoms away, consequently bending the molecule.

Re: Molecular Shape

Posted: Mon Nov 12, 2018 12:35 am
by Nicolette_Canlian_2L
I think there might also be a chart to help memorize the different shapes of molecules. It should list the number of bonded and lone pairs, which determine the molecular shape.

Re: Molecular Shape

Posted: Mon Nov 12, 2018 2:12 am
by Ethan Yi 1K
just look and see if there are any lone pairs. If there are, there will be repulsion with the bonding pairs and thus a bent shape will be formed.