Bond angles

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

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Rylee Nelsen 3A
Posts: 37
Joined: Fri Sep 28, 2018 12:22 am

Bond angles

Postby Rylee Nelsen 3A » Sat Nov 24, 2018 3:41 pm

I am confused as to how you determine whether an angle is less than 109.5 degrees? Could someone give me an example?

juleschang16
Posts: 55
Joined: Fri Sep 28, 2018 12:19 am

Re: Bond angles

Postby juleschang16 » Sat Nov 24, 2018 3:47 pm

For trigonal pyramidal geometry the bond angle is slightly less than 109.5 degrees, around 107 degrees. For bent molecular geometry when the electron-pair geometry is tetrahedral the bond angle is around 105 degrees.

905109118
Posts: 34
Joined: Mon Oct 01, 2018 12:16 am

Re: Bond angles

Postby 905109118 » Sat Nov 24, 2018 4:42 pm

Basically, whenever there is a lone pair on top, that means they will push down on the bonds, causing them to have an angle less than 109.5.


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