character: Ms. Smith
topic: Periodic Trends and Reactivity
grade: 9
subject: Chemistry
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character: Mr. Johnson
topic: Understanding Atomic Structure
grade: 9
subject: Chemistry
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character: Mrs. Green
topic: Chemical Bonding and Forces
grade: 9
subject: Chemistry
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character: Dr. Brown
topic: Introduction to the Periodic Table
grade: 9
subject: Chemistry
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