Sitting at the bottom of this row of chemical workhorses, this spectacularly radioactive element would be toxic to anyone who came near it, if only it could stop itself from vanishing. In fact, it ...

More common than gold, uranium is abundant on Earth. But less than one percent of the naturally occurring element is useful ...

Francium — the 87th element on the periodic table — is a naturally occurring, but incredibly rare, radioactive element. It forms and decays extremely quickly, so it has no practical uses, and ...

This substance is the most radioactive natural element, a million times more so than uranium. It is so radioactive that it gives off a pale blue glow. Yet it would still take the Curies another ...

Radioactive decay is the strange and almost mystical ability for one element to naturally and spontaneously transmute into another. In the process, those elements tend to emit deadly forms of ...

ORNL is the U.S.' only producer of promethium-147, an isotope of the element with a radioactive half-life of 2.6 years. Using a method developed last year, ...

All actinides are radioactive, but uranium is one of the four most radioactive elements, alongside radium, polonium and thorium. You may like 'Neutron lifetime puzzle' may have a new solution; ...

In 1945, Oak Ridge National Laboratory discovered a rare radioactive element called promethium. Nearly 80 years later, scientists have unlocked it.

Moyer led a team that developed separation processes for removing the most radioactive element in one of the most voluminous nuclear wastes so it can be turned into glass to isolate it from the ...

A radioactive substance, either as an element or as a compound, may enter the body by one or more of four routes — namely, the lungs, the digestive tract, through cuts or abrasions, and the ...