character: Dr. Atomic
topic: Understanding Atomic Structure
grade: 9
subject: Chemistry
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character: Marie Curie
topic: Discovery of Radioactivity
grade: 9
subject: Chemistry
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character: Niels Bohr
topic: Bohr Model of the Atom
grade: 9
subject: Chemistry
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character: Dmitri Mendeleev
topic: Periodic Table and Atomic Theory
grade: 9
subject: Chemistry
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