so what should you be able to do so with valence bond theory you should be able to use your lewis structures determine the hybridization predict a shape and it should match what you already know in vesper theory so here's an example of a molecule and there's a whole bunch of different centers that we can think about in here so we already know that the hydrogen atoms are just going to be your s orbitals so they're not going to undergo any kind of hybridization because there's nothing else available for but your carbon atoms we can start to count up the electron domains on here so for this carbon we know that we have one two three four um electron domains so we should be able to have s p 3 hybridization uh for this carbon atom in here and so we should also predict those bond angles are somewhere around 109.5 degrees in there and then this carbon atom we know that we have one two three um electron domains so we should be able to get sp2 hybridized orbitals and predict this is going to be 120 degrees for those bond angles for both of these oxygens or for this oxygen up here we can think about this it has one two three electron domains so this oxygen is also going to be hybridized as sp2 hybridization and this oxygen over here is going to have one two three four domains so this should be sp3 hybridized on here so this actually predicts all the shapes all the different kinds of bonding that is happening uh in there and it is matching our vesper theory quite a bit so we can also go to one of these kind of molecules where we have uh you know uh expanded octet so this one over here we look at this over here this sulfur atom is going to have uh five domains so we should expect that this is going to have uh sp3d hybridization uh with that and with this sp3d hybridization the lone pair goes on this trigonal planar section of this so we end up getting some sort of seesaw shape for the sp3d and we can predict the bond angles we're going to know that this is about 120 degrees this one over here is about 190 degrees since it's on the axial positions of that uh shape but we also know that the the electron pair is going to push this so it's going to be slightly less than 90 degrees and slightly less than 120 because it's going to go ahead and push it in just a bit and this one over here we uh same thing we have five electron domains so there's sp3d we're going to take five different atomic orbitals and hybridize them so we should get some sort of t-shaped um molecule for that