By the periodic table’s logic, all d-block elements should have filled s orbitals. But copper defies that logic. It should have the electron configuration [Ar] 3d 9 4s 2.

In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue explores how the periodic table of elements took shape. Learn how the periodic table ...

A fun new visualization of the Periodic Table we're all familiar with from high school can help teach how we each element from the periodic table. ... (since it's a building-block of life), ...

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 ...

It’s not every day an element gets added to the periodic table. The last time it happened was 2016, when four new elements became official.. For these elements, reaching the table was an epic ...

Most elements on the periodic table have at least one stable form. But some don’t. Here’s how long those unstable members endure.

Take a look around: Every single thing you see is made up of elements in the periodic table. Ever since scientists first cobbled together these catalogs of nature’s building blocks in the 19th century ...