character: Mr. Smith
topic: Introduction to Periodic Table Trends
grade: 12
subject: Chemistry
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character: Ms. Johnson
topic: Periodic Properties and Trends
grade: 12
subject: Chemistry
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character: Dr. Lee
topic: Trends in Atomic Radius
grade: 12
subject: Chemistry
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character: Mrs. Brown
topic: Electronegativity Trends in the Periodic Table
grade: 12
subject: Chemistry
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