What information is listed in an element's square in the periodic table?
Most periodic tables give at least the name, symbol, atomic number, and relative atomic mass (atomic weight) for each element. Occasionally you'll come across one that gives the symbol but not the name. However, many periodic tables include more information for each element, such as electron configuration, oxidation states, density, etc.
Webelements.com is a website that offers a free, printable periodic table which includes the basic information for each element. (There is a lot of information on this website besides the periodic table. I encourage you to look around.)
The next two periodic tables have more than the basic information.