SEARCH Articles Figures Tables Elements periodic table Elements periodicity Matter and the Periodic Table of Elements PERIODIC TABLE OF THE ELEMENTS, USEFUL CONVERSION FACTORS, AND FUNDAMENTAL CONSTANTS Period 2 elements Period A horizontal row of elements in the periodic table Periodic Table of the Chemical Elements Periodic table of the elements Periodic table of the elements Periodic table of the elements atomic number Periodic table of the elements atomic properties and Periodic table of the elements defined Periodic table of the elements development Periodic table of the elements filling order Periodic table of the elements group number Periodic table of the elements groups Periodic table of the elements history Periodic table of the elements lanthanides Periodic table of the elements metals Periodic table of the elements organization Periodic table of the elements oxidation numbers and Periodic table of the elements principles Periodic table of the elements quantum-mechanical model Periodic table of the elements within groups Periodic table of the elements, Inside front Periodic table of the elements, Inside front cover Periodicity of elements Skill 12.11-Based on position in the periodic table, predict which elements have characteristics of metals, semimetals, nonmetals, and inert gases THE PERIODIC TABLE HELPS US PREDICT PROPERTIES OF ELEMENTS Table of the elements The periodic table