I am staring at a periodic table, checking and double checking like mad, and this is still telling me I'm wrong. I just need to know if I'm being daft here, or if I need to email my professor so he can give me (and probably the rest of our class) the points for this problem if it's not working.
*Note: I was testing to see if different answer combinations would help, such as including metalloids in metals and nonmetals. In this screencap I've added metalloids to the metal boxes. It is still marked wrong when I do not include them.