character: Marie Curie
topic: Contributions to Radioactivity and Discovery of Radium
grade: 12
subject: Chemistry
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character: Henri Becquerel
topic: Discovery of Radioactivity
grade: 12
subject: Chemistry
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character: Ernest Rutherford
topic: Nuclear Structure and the Concept of Radioactive Decay
grade: 12
subject: Chemistry
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character: Niels Bohr
topic: Atomic Models and Molecular Structures
grade: 12
subject: Chemistry
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