Plutonium, a radioactive element, is produced when uranium, another radioactive element, absorbs neutrons, and most of it is artificially produced, except for a small amount found in uranium ore.

Plutonium may be the most feared and fearsome substance in the entire periodic table. It's best known as the main ingredient of atomic bombs like the infamous Fat Man, dropped on Nagasaki on 9 August ...

Oxidation is the process where atoms lose electrons during a chemical reaction. Among the radioactive elements, neptunium and plutonium are much harder to oxidize than uranium. To study these elements ...

On this day in 1940, the element plutonium was first isolated by researchers at the University of California, Berkeley. Here’s a quiz on it.

We acknowledge Aboriginal and Torres Strait Islander peoples as the First Australians and Traditional Custodians of the lands where we live, learn and work.

Between 1951 and 1992, the United States set off nearly a thousand nuclear bombs at the Nevada Test Site, an empty and awesome stretch of desert whose cratered surface resembles the face of the moon.

Plutonium is a radioactive chemical element, with the symbol Pu and atomic number 94. It is a heavy, silvery metal that becomes opaque when it oxidizes. The most important isotope of plutonium is ...