Periodic table

Core Concepts: Periodic Table periodic table

Award winning periodic table, with user-friendly element data and facts Cool, online chemistry videos, dictionary, and forum

periodic table of elements It is called periodic because elements are lined up in cycles or periods From left to right elements are lined up in rows based on their atomic number (the Explore the Periodic Table in a clear and interactive view Hover over the groups, see the atomic numbers, view the symbols and more! The periodic table of elements is an arrangement of all of the known chemical elements They are arranged in a specific configuration in order to reflect

polball บ้านผลบอล PERIODIC TABLE OF THE ELEMENTS 1 2 H He 2 13 14 15 16 17 3 Li 11 Na 4 Be 12 Mg 3 4 5 6 7 8