Periodic Table contains all the elements of the Periodic Table along with images of the elements in their natural state, as well as lots of other information and interactive displays. The periodic table now comes in three versions. They all contain the same amount of information. Standard Version, which designed to be used on desktops, set to 1024x768 or better. Contains many small images of most of the elements. Extra Version, this is identical to the Standard Version except it comes with 155 high-resolution images of the elements in various physical states. Mini Version, it contains the same smaller images that come with the standard version, except that it's designed to be used on desktops of 800x600.