One day, during the spring semester of 1999, L. Bruce Railsback turned against one of science’s most visible icons: the periodic table of chemical elements. He was using a conventional periodic ...

It's time to update your copy of the periodic table. Four new elements discovered in recent years have now been named, pending final approval by the international group of scientists in charge of ...

Mendeleev’s periodic table, published in 1869, was a vertical chart that organized 63 known elements by atomic weight. This arrangement placed elements with similar properties into horizontal rows.

Elements up to oganesson (element 118) have been produced in experiments, named, and included in the periodic table of elements in accelerator facilities around the world, such as at GSI in ...