The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

You may use table navigation commands for the screen reader of your choice. The Periodic Table of Elements. Each entry contains the atomic number, chemical symbol, and atomic mass to two decimal ...

Test your knowledge and compete with other Live Science readers to see who can come top in our periodic table quiz ... their atomic number , ranging from 1 to 118, grouping them by elements ...

Can France claim the first periodic table? Probably not, but a French Geology Professor made a significant advance towards it, even though at the time few people were aware of it. Alexandre Béguyer de ...

Watch this video to find out more information on the periodic table close ... and show trends. The table below shows the melting points of most elements in group 1. Melting points are a physical ...