character: Hans Geiger
topic: Geiger Counter and its invention
grade: 12
subject: Chemistry
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character: Marie Curie
topic: Pioneering work in radioactivity and radiation detection
grade: 12
subject: Chemistry
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character: Enrico Fermi
topic: Development of detectors for radiation and his contributions to nuclear chemistry
grade: 12
subject: Chemistry
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character: Ernest Rutherford
topic: Studies on radioactivity and methods of detecting radiation
grade: 12
subject: Chemistry
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