Name this radioactive element found just after uranium and neptunium in the Periodic Table.
This element exhibits six solid-state phase transformations before reaching a liquid state, more than any other element. It probably would have been discovered by McMillan and Abelson, but when they joined the Manhattan Project, this became the first element discovered by Glenn Seaborg. It made up much of the core of The Gadget detonated in the Trinity test, and it was used in the Fat Man bomb dropped on Nagasaki. This is used in an alternative to enriched uranium fuel known as mixed oxide fuel. Name this radioactive element found just after uranium and neptunium in the Periodic Table.
This element exhibits six solid-state phase transformations before reaching a liquid state, more than any other element.
plutonium [or Pu]