Bond angles

[SamanthaTolentino 3D]

Do we have to know the bond angles for the different shapes for the final?

[Megan Chan 3A]

Yes! This is definitely something you should be familiar with.

[Angelica Soriano 3L]

Yes!! I'm pretty sure Dr. Lavelle emphasized them so we should have a general idea about the bond angles for every molecular shape.

[LeanneBagood_2F]

as others have already mentioned, yes, you should have at least a general idea of the bond angles of each structure. this includes knowing the values (90, 109.5, 120, 180) and whether the angle is the value itself or if it would be less than that value (<90, <109.5, <120, <180).

[Sharon Kim 2A]

Make sure that bond angles will be smaller because of lone pair repulsion for the more complicated structures. They won't be the standard 120, 109.5 angles.

[Kayla Booker 1F]

Yes, you should at least have a general idea, and sometimes after drawing out the 3D model you can figure out the bond angles.

[Jiwon_Chae_3L]

Yes, they will probably be on the test in some form or another. It always helps to draw out the 3D form of the molecule and I also think that the fact that the angles are not always exactly the theoretical value will also be tested.

[claire ikemiya_2I]

From the review sessions I went to, one example problem the TAs thought would be important to be able to do is draw a lewis structure, then describe IMF, and describe shape/bond angle. So, I think it we need to understand all aspects for the final. Online charts + book examples are really helpful.

[Erika Sosa-Cruz 1J]

Yes you should know the bond angles for the final

[Brian Acevedo 2E]

I think as long as we are familiar with the more common bond angles (i.e. 90, 109.5, 120 etc. as well as the associated shapres we should be alright.

[Jaden Joodi 3J]

Yes, please make sure you know the bond angles. Here is a good reference image:
https://i.pinimg.com/originals/62/14/b5 ... 4ee088.jpg

[205323697]

By how much would an angle go up or down if we added a lone pair?

[America Ramirez 3H]

By how much would an angle go up or down if we added a lone pair?

I think only slightly because the lone pair does have a slightly stronger repulsion factor than atoms.