Colorful, clearly organized, and complete, this periodic table has it all. Our most complete periodic table, the chart's highly visible element symbol, name, and atomic number make finding key information easy. The nine important elemental properties -atomic weight, density, melting point, boiling point, atomic radius, electronegativity, first ionization energy, oxidation numbers, and electron configuration - are organized in a logical and easy-to-read format. All data was recently revised in 2009. Printed in the USA on rip-resistant polymer sheet, chart includes metal rods on top and bottom for stability and ease of hanging. Size: 60" x 46".