This periodic table shows which chemical elements are metals. The rest are nonmetals. If you put two metal elements together you get an alloy; if you put a metal and nonmetal together, you get a salt. In special cases with metals and some carbon-based molecules, you can also form compounds called organometallic compounds.
This periodic was created via LabMike's Interactive Periodic Table, which is a small jQuery programming project I am using to teach myself more about programming.