 Okay, so like I was saying, let's do a very similar structure to H2 but not the same structure but HBr, okay? So why is H2 and HBr very similar? Because both hydrogen and bromine need what? One electron to do what? To be noble gas configured, right? So, hydrogen, so draw the little structure of both of those atoms. So hydrogen looks like that, right? What does bromine look like? And remember, you want to draw these in such a way so you can make these fish-o-garos. Okay, so that's a bromine atom, okay? So just like hydrogen H2, I'm talking about, diatomic, these atoms both need one electron to fill up their valence. So it's the same sort of, but now you'll notice that there's these lone pair electrons all around bromine, okay? So remember, when we showed that sharing, we're going to show a line there, but the lone pair electrons, we just keep those as what they look like, okay? So we've got the covalent bond there, Br, and it's surrounded by its six electrons lone pair electrons, or it's three pairs of electrons, okay? So notice, both of these atoms have their valence shell totally filled, right? Because they're sharing these two electrons in there, okay? Is everybody okay with that? So again, just like what we were doing earlier, we were showing the skeletal structure. So we can see something like HBr here. It's a skeletal structure, maybe. Okay, you can see kind of the discrepancy between the sizes of hydrogen and bromine. In this case, the bond is being emphasized, okay? But remember, molecules don't really look like that. The atoms are fairly close together, like this space-billing model shows. Or we could show this other space-billing model that represents the relative size of the atoms, much better, okay? So you know that bromine is much bigger than hydrogen, okay? So even though here we draw on to be the same size, right? This is not really a correct representation. In fact, this isn't really a correct representation either. This is a styrofoam, right? So these are all just representations of molecules, okay? So it's not an actual molecule. All of these pieces put together kind of describe more and more what these molecules look like, how they behave, okay? Is everybody okay with HBr? So any questions on this one? Okay, let's go.