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 may ...

Editor's note: The following is a text-only version. The complete version with artwork is available for purchase here (PDF). The periodic table of the elements is one of the most powerful icons in ...

The periodic table stares down from the walls of just about every chemistry lab. The credit for its creation generally goes to Dimitri Mendeleev, a Russian chemist who in 1869 wrote out the known ...

Cal: OK, friends. Chemistry time and in the studio with me I have super science school teacher Mrs Roberts, who's gonna show us how to make a massive fizzing volcano. We're gonna have sparks, lava ...

A century and a half ago, a Russian chemistry professor published a classification of all the known elements, organized by atomic weight. Today, the system that he created for his students — plus some ...