character: Mr. Lee
topic: Trends in Element Reactivity
grade: 11
subject: Chemistry
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character: Ms. Johnson
topic: Periodic Table and Reactivity Trends
grade: 11
subject: Chemistry
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character: Dr. Smith
topic: Factors Influencing Element Reactivity
grade: 11
subject: Chemistry
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character: Mrs. Wong
topic: Comparative Reactivity of Metals and Nonmetals
grade: 11
subject: Chemistry
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