The periodic table, also called the periodic table of elements, is an organized arrangement of the 118 known chemical elements. The chemical elements are arranged from left to right and top to bottom ...

A new model rectifies the long-standing deficiencies of the electronegativity concept.

As of 2019, the Periodic Table of the Elements has been around for 150 years. Maybe you've felt a certain chemistry with 2019 but don't know why? Maybe it's because this year marks the 150th ...

One hundred fifty years after Russian chemist Dmitri Mendeleev published his system for neatly arranging the elements, the periodic table it gave birth to hangs in every chemistry classroom in the ...

This year is the International Year of the Periodic Table of Chemical Elements—and today (March 6), the modern version celebrates its 150 th birthday. To find out more about the table and how new ...

Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard When you purchase through links on our site, we may earn an affiliate commission ...

The elements formerly known as 113, 115, 117, and 118 have been officially named Nihonium (Nh), Moscovium (Mc), Tennessine (Ts), and Oganesson (Og), respectively. With this confirmation, they can join ...