Properties and sources of the element francium.
All matter is composed of fundamental substances called elements. Depending on the combination of elements, the result is a different material, with different characteristics. And while some elements are naturally occurring, others are only now being realized as they are created inside particle accelerators. Here are all the latest discoveries and developments to help you keep up with the fascinating world of elements.
Reference Carbon is one of the most abundant elements and forms a very large number of compounds, including carbon dioxide, carbon monoxide and carbon disulfide.
Reference Here's a look at the element copper, including its atomic structure, history and uses today.
The Periodic Table, first created by Dmitri Mendeleev, organizes all of the known elements in an informative array.
Scientists have just created the world's lightest form of magnesium — a never-before-seen isotope with just six neutrons in its atomic nuclei.
Reference The elements in the periodic table are arranged according to the transition from metal to nonmetal elements.
Scientists have finally uncovered some of the basic chemical properties of einsteinium — one of the hardest elements to study.
Our world is full of chemicals that shouldn't exist. New research could explain why they exist anyway.
The world's oldest classroom poster of the periodic table of elements, dating to 1885, has turned up in Scotland.
Polonium was a critical ingredient in the first atomic bomb and it's a suspected poison in more than one high-profile death.