Central to understanding its reactivity and bonding properties is the concept of valence electrons. Determining the number of valence electrons in thallium requires a nuanced approach, considering ...

Rare earth elements are actually more abundant than precious metals such as platinum and gold. The challenge, however, is ...

Drawing the electron configuration for a neutral atom of silicon involves understanding its atomic structure and applying the rules that govern how electrons are arranged within an atom. Silicon, a ...

MR. ROY GARDNER gave an interesting paper on “A Method of Setting out the Classification of the Elements” at a recent meeting of the New Zealand Institute. The paper included the accompanying Table, ...

In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue examines how atomic structure determines reactivity. Meet Theo Gray, chemist and author, who ...

The periodic table has been a vital foundational tool for material research since it was first created 150 years ago. Now, researchers add an entirely new dimension to the table, offering a new set of ...

Transition Elements - General introduction, electronic configuration, occurrence and characteristics, general trends in properties of the first-row transition elements - physical properties, ...

The periodic table has been a vital foundational tool for material research since it was first created 150 years ago. Now, Martin Rahm from Chalmers University of Technology presents a new article ...