 So let's try this example without our key up there. So we're trying to classify these as diatomic, triatomic, and or polyatomic. So remember, diatomic is two atoms, triatomic is three atoms, and polyatomic is two or more atoms. So really, any molecule is polyatomic. So two atoms, four atoms, right? Two atoms, three atoms, four atoms. So two atoms can be called diatomic. This in 1-0 is two atoms, this is three atoms. This one has full application that I don't even know what these guys look like. Single bond like that. But when you do, you become very reactive, because that bond is very reactive. Not a very late-mile, we say. But anyways, you don't need to know that for right now. The most important is the polyatomic, diatomic, triatomic thing. Hopefully, everybody's got it by now. OK.