#bond angles

[datarep]

Histogram of Bond Angles versus Dihedral Angles from a Simulated Polymer Chain

[chemistryalevel]

Bond Angles recap

second time round and i still don't know this sigh here we go again

octahedral is six things rather than 8 - i like to think of an octopus that didn't heed the safety precautions and lost a couple of limbs. 

remember: lone pairs repel more than bonded pairs!

here's a handy table

How do you guys remember these?

linear is just a straight line so that's 180

trigonal planar sounds like triangle so there's three, and 12 is a multiple of 3?? ??? wow okay

tetrahedral is 109.5 bc it sounds like tetris and tetris is infuriating so naturally it's going to be the only one of these with a decimal place just to be difficult

octahedral is 90 because you can draw this one out and see that it's 90 so at least it's easy yey

if you can remember the numbers it's okay because you know that as the number of electron pairs increase the bond angle will decrease so you can figure it out by ordering it

if there's one lone pair and three bonding pairs it's 107 - 7 is a prime number so it's weird therefore it's only going to appear in the weird ones

if there are two lone pairs it's 104.5, water is the only one you need to know about and i'm really grasping at straws here anyone got a good way of remembering water?

you can see why i can't learn these

[chesacakeripper]

Water is such a happy molecule....

[biologevie]