Actinides are a group of heavy, radioactive elements that include uranium, plutonium, americium, curium, berkelium and californium. Understanding how these elements bond with other atoms (known as ...

After a year of fastidious planning, a microscopic sample of the ultra-rare radioactive element berkelium arrived at a Berkeley Lab. With just 48 hours to experiment before it would become unusable, a ...

Plans to deliver the first-ever precision measurements of some of the rarest and most unstable atomic nuclei could reshape our understanding of nuclear structure and how chemical elements are formed ...