Otto Hahn was a chemist and was born in Frankfurt, Germany, on March 8, 1879. It was important because he studied nuclear fission and radioactivity. He graduated chemist in Munich at the University of Marburg, where he completed his doctorate in 1901 in the area of Organic Chemistry.
In 1905, he discovered the radioactive radioactive isotope while working in London with Sir William Ramsay. He worked from 1904 to 1906. Then he went to Canada to study deeper radioactivity with Ernest Rutherford at McGill University in Montreal. There he discovered a new radioactive substance, the mesotory, in 1907.
In Germany, he began research with Austrian Jewish physics Lise Meitner in 1912. They discovered the radioactive element protactinium (1917), isolated Pa-231 and uranium-Z (1921). He was director of the Max Planck Institute from 1927 to 1946, the same place where he did his research.
Together with Meitner and Fritz Strassmann, he proved the possibility of nuclear fission through the chemical process of neutron uranium nucleus (1938). It was this discovery that helped the United States manufacture the atomic bomb during World War II.
Hahn won the Nobel Prize in Chemistry in 1944 for his work on atomic fission with the discovery of the heavy nucleus. However, Adolf Hitler prevented him from receiving the prize. In 1947, he was elected president of the Kaiser Wilhelm Society, which is today the Max Plank Society.
He fought the development and testing of nuclear bombs after the explosion of atomic bombs in Japan. In 1966 he received the Enrico Fermi Prize with Meitner and Strassmann.
That same year, he passed away in Gottingen, Germany.