Lurking at the bottom of the Periodic Table is a group of super-heavy, radioactive elements that are so rare that they can't be found in nature; they had to be created in the lab. Among these is berkelium, named by the scientists from U.C. Berkeley that first synthesized it. Very little is known about this unusual element, in part because of its scarcity. Only about a gram of the stuff has been produced in the United States since 1967. But breakthrough new research is beginning to unravel some of the mysteries of this massive metal, and it's more bizarre than we ever could have imagined. Most notably, berkelium's electrons behave in strange ways, seemingly violating the laws of quantum mechanics.