Our most popular periodic table, this large chart uses clear text and bright color to make the elements and key information easy to find. The symbol, atomic number, and atomic weight are large and highly visible. Element name, electron configuration, oxidation states, electronegativity, and density are slightly smaller. All data was revised in 2009 for the most up to date representation. Printed in the USA on rip-resistant polymer sheet, the chart includes metal rods on the top and bottom for stability and ease of hanging. Size: 60" x 46".