character: Ms. Emily Chen
topic: Periodic Table Trends
grade: 12
subject: Chemistry
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character: Mr. John Smith
topic: Atomic Radius and Periodicity
grade: 12
subject: Chemistry
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character: Dr. Lisa Wong
topic: Electronegativity Trends in the Periodic Table
grade: 12
subject: Chemistry
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character: Mrs. Sarah Davis
topic: Trends in Ionization Energy
grade: 12
subject: Chemistry
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