character: Marie Curie
topic: Research on radiation
grade: 9
subject: Chemistry
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character: Albert Einstein
topic: Theoretical foundations of radiation
grade: 9
subject: Chemistry
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character: Ernest Rutherford
topic: Discovery of alpha and beta radiation
grade: 9
subject: Chemistry
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character: Niels Bohr
topic: Structure of atoms and radiation emission
grade: 9
subject: Chemistry
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