12. Molecular Orbitals (Intro to Solid-State Chemistry)
And speaking of VSEPR, that's what we did last lecture. We're going to move on today. But I want to just clarify something about VSEPR. When I was talking about this I tried to put two different concepts in the same place. And I put something in the table that shouldn't have been there. And people corrected me. I want to be sure that there is no confusion around this. So what we had was a case of formaldehyde. And we had the case of SO2. And I want to be really clear about this. Both of these molecules, when you're thinking about VSEPR, the number of electron domain count-- Right. Remember, that's how we start. The number of electron domains is the same for both of them. And we did this on Wednesday. Right. And if the number of electron domains is the same, then the electron domain geometry is trigonal planar. Right. OK. But I was also telling you about repulsion order at the same time. And so I put the wrong thing in the table. And then I erased it. A...