Atoms with more than 4 valence electrons tend to gain electrons to achieve a stable configuration, forming negative ions ...

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 ...

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 ...

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