What element's isotopes did Jensen work on separating?
Plutonium
Thorium
Uranium
Hydrogen
Answer
The element whose isotopes Otto Hahn and Fritz Strassmann worked on separating was uranium. Their experiments in the late 1930s led to the discovery of nuclear fission, a process in which a heavy atomic nucleus, such as uranium, splits into two or more lighter nuclei, releasing a great amount of energy. This discovery laid the foundation for the development of nuclear energy and nuclear weapons.
Unlocking the Atom: The J. Hans D. Jensen Challenge
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