I am curious about the state of CCl4 considering that all of carbon's valence is used. So, to make it easy like a math formula I will show you my steps of logic and you can point out if/where my flaw is.
1. carbon only has 4 electrons that can be used (even Chlorine isn't strong enough to grab it's S's)
2. The bond between CCl4: each unpaired chlorine electron is attracting one of carbons electrons using up all of carbons available electrons
3. 2 of carbons electrons are in the S volume.
4. Now I have some options of what could be happening:
A) it is hybridizing S & P orbitals (specifically sp2) to account for the needed volume of chlorine's electrons
B) one of carbons electrons is in the S orbital and bonding with Chlorine's P orbital electron. This answer seems like it would be a mathematical mess due to the different energy levels, and relative volumes
C) the molecule is so polar only two of the electrons ever are in carbons S orbital at one time. Again this option seems to be an odd situation of perfect synchronization (too good to be true)
5. The only logical option seems to be that it is sp2 hybridized, but my answer sheet says this is wrong..
6. clear one other thing up for me please. Hybrid orbitals don't actually effect usable volume until you get to sp3d cause before that it would always be a maximum of eight electrons?