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 ...

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, atomic weight and the broad group they live in.

You know the periodic table that hung on the wall of every science class you took at school? As of today, it’s wrong. Or more precisely, it's inaccurate.

The origins of the periodic table, however, go back to the 1860s. Russian chemist Dmitri Mendeleev, building on the work of others, took the 63 known elements — including hydrogen, ...

Their most stable electron numbers are 2, 10, 18, 36, and so on." Maeno decribes these as atomic “magic numbers”, and importantly the same principle can also be applied to protons. ... "In our nuclear ...

At the American Chemical Society (ACS), our vision is to improve people's lives through the transforming power of chemistry. Next year marks the 150th anniversary of the publication of Mendeleev's ...

An alternative periodic table of elements focusing on highly charged ions reveals new science that could support the quest for more accurate optical atomic clocks. Close. Advertisement.

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, atomic weight and the broad group they live in.