Otto Hahn

Otto Hahn

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  • Protoactinium!
  • Otto Hahn and Lise Meitner discovered element number 91 together.
  •   ?91
  • Meitner was pressured by the Nazi ideology, Otto Hahn, and his colleagues to leave Germany because of her Jewish heritage.
  • Kaiser Wilhelm Institute 
  • Even after Meitner left, they continued to write to eachother in secret about some of their work.
  • Dear Lise, I've been doing some experiments with decaying Uranium into Radon, but I've got some puzzling results. The Radon behaves like barium. I would appreciate your insight on the phenomenon.     -Otto Hahn
  • Hahn encountered results in his studies that he could not explain. He asked Meitner about it and she came up with a revolutionary theory that explained it.
  • Dear Otto,     I find the results of your experiments to be intriguing. Maybe your "Radon" is actually Barium. Maybe in the right conditions, an atom sufficiently unstable could be split in two. -Lise Meitner  
  • I'll call it nuclear fission!
  • Otto Hahn tested Meitner's theory and proved it to be correct.
  • E = mc2
  • He received great praise among the scientific community for his work, but he did not give Lise Meitner any credit.
  • Nobel Peace Prize Otto Hahn The Father of Nuclear Chemistry Awarded for great contributions in the field of chemistry, and the discovery of nuclear fission.
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