character: Mr. Lee
topic: Periodic Trends: Ionization Energy and Electronegativity
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Understanding Atomic Radius and its Trends
grade: 9
subject: Chemistry
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character: Dr. Smith
topic: Comparing Metallic and Non-metallic Properties in the Periodic Table
grade: 9
subject: Chemistry
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character: Mrs. Brown
topic: Exploring the Relationship Between Electronegativity and Bonding
grade: 9
subject: Chemistry
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