Scientists have discovered the elusive properties hidden within promethium, a rare earth element that has remained largely ...

Eighty out of the first 82 elements in the periodic table have stable isotopes. Measuring and analysing their distribution allows for many practical applications. The IAEA assists Member States in ...

Erik Pollock, a geoscientist at the U of A, is the lab manager of the University of Arkansas Stable Isotope Lab and the Trace Element and Radiogenic Isotope Lab.

That doesn’t make this gas any less heroic though: during the Cold War, its radioactive isotope Kr-85 was used ... the most chequered past of all the elements on this list.

There are currently 118 known elements listed on the periodic table; from hydrogen ... by bombarding plutonium-244, an ...

While the number of protons defines the element (e.g., hydrogen, carbon, etc.) and the sum of the protons and neutrons gives the atomic mass, the number of neutrons defines the isotope of that element ...