Discover the history, structure, and importance of the periodic table of elements, from Mendeleev’s discovery to modern scientific applications.

An international team of researchers, led by scientists from GSI/FAIR in Darmstadt, Germany, has studied r-process ...

World's Oldest Periodic Table Found in Storage For electrons, the shell levels are full at 2 in the first, 8 in the second, and so forth. Overall, the numbers representing full-up electron shells ...

The elements were placed in the periodic table’s seventh row, which is above the row of lanthanides and the row of actinides. In the 1980s and 1990s, Roberto noted, scientists at the GSI Helmholtz ...

Eighty out of the first 82 elements in the periodic table have stable isotopes. Measuring and analysing their distribution allows for many practical applications. The IAEA assists Member States in ...

This is the second part of a three-part series written by Carolyn Krause. Many of the elements were synthesized using an Oak Ridge reactor.

Periodic table gets some flex. Committee’s revisions give chemical isotopes their due. Share this: Email; Facebook; ... enter your e-mail address for full access to the Science News archives and ...

Here’s how long the periodic table’s unstable elements last. Some of these isotopes have half-lives of seconds or less, while others last and last ...