character: Professor Lee
topic: Comparative Reactivity of Alkali and Alkaline Earth Metals
grade: 12
subject: Chemistry
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character: Dr. Smith
topic: Trends in Reactivity of Group 1 and Group 2 Elements
grade: 12
subject: Chemistry
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character: Ms. Johnson
topic: Reactivity of Metals with Water and Acids
grade: 12
subject: Chemistry
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character: Mr. Davis
topic: Understanding Electron Configuration and Reactivity
grade: 12
subject: Chemistry
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