Organization of chemical elements in alphabetical order by their names (or symbols) doesn't tell us anything about their properties but it is useful when searching for an element. We can list elements in order of increasing atomic number but it wouldn't be a periodic table any more. The periodic table is a chart that organizes the elements by increasing atomic number and their chemical and physical properties (see article History of the Periodic table of elements). Rows are arranged so that elements with similar properties fall into the same vertical columns ("groups").
Long form of the periodic tableThe lanthanides and actinides should actually be placed in the middle of the table as well, after lanthanum and actinium, but, because of their similarity to each other, they are removed from the middle to save space.
Short form of the periodic tableOn periodni.com you can find two version of the periodic table
EniG. Periodic table of the elements - a very attractive periodic table, available in six languages (German, English, French, Croatian, Italian, and Spanish) and twelve temperatures (ITS-90), completely designed in CSS.ASCII Periodic table of the elements - a periodic table especially made for browsers with slow (or expensive) connections (such as a mobile phone users) or for purely text-based browsers like Lynx.