Ie decreases going down a column of the periodic table and increases from left to right in a row. Metals reside on the left side of the table while non metals reside on the right. Free Printable Periodic Table Legal Size And 2 Page Landscape It is organized in order of increasing atomic number. Periodic table of elements . The periodic table of the elements was first introduced in the mid 19th century by dmitry mendeleev. He organized the elements by atomic number which is equal to the number of protons found in the nucleus of the element s atoms. It is organized in order of increasing atomic number. List of periodic table elements in hebrew. Interactive periodic table with dynamic layouts showing names electrons oxidation trend visualization orbitals isotopes and compound search. Note that the periodic table of elements page is provided in order to help navigate abundant chemical element data available in pubchem each element also has a dedicated page with a lot more info