 Okay, so let's try this one. Which of the following is improperly labeled? So Copper, is that a transition element? Yes. Okay, bromine is that a halogen? Yes. Yes, it is. Magnesium, is that an alkaline earth petal? Yes. Yes, we know that because we know, what is this element here? Uranium. Uranium, is it a noble gas? No. Okay, so if you didn't know the alkaline earth metals, like I know some of us didn't, okay? Go back and remember that second column is called alkaline earth metals. That was one of the four that I wanted you to definitely remember the columns, you know? So it goes alkaline metals, alkaline earth metals, and then on the other side, number seven is halogens and then eight noble gases, okay? And then in the middle, those are the transition metals, okay? Any questions on this one? Oh, I guess we should circle the right answer, okay? Or the wrong answer. And uranium is a, what is it? Uranium? Metal. It's a metal, yeah. It's a Lamponite metal. It's one of the radioactive ones. Any other questions on this one?