Hahn, Otto

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Hahn, Otto (1879–1968) German physical chemist. He worked on radioactivity with William Ramsay and Ernest Rutherford. In 1906, he returned to Germany to work with Lise Meitner. In 1917, they discovered protactinium. Hahn and Meitner investigated Enrico Fermi's work on the neutron bombardment of uranium. He received the 1944 Nobel Prize in chemistry.

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