character: Ms. Elemental
topic: The History of the Periodic Table
grade: 12
subject: Chemistry
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character: Dmitri Mendeleev
topic: Creation of the Periodic Table
grade: 12
subject: Chemistry
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character: John Dalton
topic: Early Atomic Theory
grade: 12
subject: Chemistry
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character: Lothar Meyer
topic: Periodic Trends and Contributions
grade: 12
subject: Chemistry
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