Metals are located on the left side and in the middle of the periodic table. Here's a breakdown:

* Left side: All elements in groups 1 (alkali metals), 2 (alkaline earth metals), and 3-12 (transition metals) are metals.

* Middle: The lanthanides and actinides, located below the main body of the table, are also all metals.

Exceptions:

* Hydrogen (H) is a nonmetal, though it appears in Group 1.

* Metalloids (also called semimetals) are elements that have properties of both metals and nonmetals. They are located along a "staircase" line that separates metals from nonmetals on the periodic table.

Let me know if you have any other questions about the periodic table!