Most people believe the periodic table is the most important chemistry reference there is. All the known elements are arranges in an informative array. For that reason, the Los Alamos National Laboratory offers the Periodic Table of Elements: A Resource for Elementary, Middle School, and High School Students.
When you open the file of any element in thePeriodic Table of Elements, you will find a small table with some basic information about that element, such as atomic number, symbol, and weight.
Watch a video demo of Periodic Table of Elements
Originally created by Robert Husted at Los Alamos National Laboratory about 1992. Periodic Table of Elements was given a face lift during 2002-03 by Mollie Boorman, then again in 2011, by Maida Trujillo.
DISCLOSURE OF MATERIAL CONNECTION: http://cmp.ly/0