Discover the history, structure, and importance of the periodic table of elements, from Mendeleev’s discovery to modern scientific applications. When you purchase through links on our site, we ...

The periodic table is a way of arranging all of these chemical elements and putting similar ones together. Image source, Getty Images. Each square on the table includes a number and letters.

Periodic Table Day is celebrated every year on … well, we'll let you figure that out in the quiz just below! Plenty of folks have a fascination with the periodic table all year long.

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 ...

The periodic table of elements is a landmark categorization developed in 1869 by the Russian chemist and inventor Dmitri ...

A periodic table of chemical elements showing where every atom in the solar system comes from. Jennifer A. Johnson/The Ohio State University; NASA; ESA ...

Conservators at the University of St. Andrews in Scotland announced the discovery of what they say is the world's oldest surviving example of a classroom periodic table of elements, dating to 1885.

A new version of the periodic table of elements has predicted hundreds of highly charged ions that could be used to create the next generation of optical atomic clocks. The periodic table, first ...

A new study lays the groundwork to expand the periodic table with a search for element 120, to be made by slamming electrically charged titanium atoms, or ions, into a californium target.