character: Henri Becquerel
topic: Discovery of Radioactivity
grade: 11
subject: Science
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character: Marie Curie
topic: Research on Radium and Polonium
grade: 11
subject: Science
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character: Ernest Rutherford
topic: Understanding Atomic Structure and Radioactivity
grade: 11
subject: Science
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character: James Chadwick
topic: Discovery of the Neutron and its Role in Radioactivity
grade: 11
subject: Science
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