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

The table looks simple at first glance, but beneath the surface, Google’s searchable classroom poster contains a handful of useful features. Share on Facebook (opens in a new window) Share on X (opens ...

(Nanowerk Spotlight) The Periodic Table of Chemical Elements is one of the most significant achievements in science, capturing the essence not only of chemistry, but also of physics, medicine, earth ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

The periodic table of the elements, principally created by the Russian chemist, Dmitry Mendeleev (1834-1907), celebrated its 150th anniversary last year. It would be hard to overstate its importance ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...