Page 1 of 1

Bond angles

Posted: Mon Jun 11, 2018 9:14 pm
by AlyssaRivera
Should we memorize bond angles for different structures? If so, which are the most important to memorize?

Re: Bond angles

Posted: Mon Jun 11, 2018 9:52 pm
by Caitlyn Ponce 1L
To be honest, I think it would be a good idea to try and memorize all of the bond angles of the molecular shapes just to be safe.

Re: Bond angles

Posted: Tue Jun 12, 2018 12:48 pm
by nicolesalcedo
The VSEPR formula really helps with determining the shape and bond angles!

Re: Bond angles

Posted: Tue Jun 12, 2018 1:34 pm
by JoeyAnn Mateo 1D
Something I used to help memorize is once you get the basic shapes down (ones without lone pairs), once you get to the shapes with lone pairs, the bond angles are similar but for exmaple
A trigonal planar is AX3 and an angular shaped molecule is AX2E. Both have three regions of electron density. Trigonal planar is 120 degrees and angular ones are usually >120 degrees. Most of them follow this trend.

Re: Bond angles

Posted: Thu Jun 14, 2018 8:04 am
by AlyssaRivera
JoeyAnn Mateo 1D wrote:Something I used to help memorize is once you get the basic shapes down (ones without lone pairs), once you get to the shapes with lone pairs, the bond angles are similar but for exmaple
A trigonal planar is AX3 and an angular shaped molecule is AX2E. Both have three regions of electron density. Trigonal planar is 120 degrees and angular ones are usually >120 degrees. Most of them follow this trend.
For shapes that are <x, should we memorize the estimations of the bond angles?