The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

The periodic table of elements has been an absolute runaway success for 150 years. Now, a team wants to try it with molecules. Here's what it would look like.

The modern periodic table arranges elements close elementA pure substance which is made from only one type of atom. Elements are listed on the periodic table. into a unique arrangement that can be ...

In the past 250 years, new elements have been added to the table about once every 2 ½ years on average, said Paul Karol of Carnegie Mellon University. He chaired the committee that recognized the ...

Chris Wilson is the technology education specialist at John Thomas School of Discovery, a K-6 science-, technology-, engineering-, arts-, and math-based public school in Nixa, Mo.

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 ...