character: Marie Curie
topic: Pioneering Research on Radioactivity
grade: 9
subject: Chemistry
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character: Niels Bohr
topic: Electron Sublevels and the Bohr Model
grade: 9
subject: Chemistry
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character: Erwin Schrödinger
topic: Quantum Mechanics and Electron Cloud Model
grade: 9
subject: Chemistry
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character: Dmitri Mendeleev
topic: Periodic Table and Electron Configuration
grade: 9
subject: Chemistry
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