character: Dr. Lisa Patel
topic: Comparing Reactivity Across Different Groups in the Periodic Table
grade: 9
subject: Chemistry
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character: Mr. John Smith
topic: Understanding Atomic Structure and Reactivity
grade: 9
subject: Chemistry
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character: Ms. Emma Johnson
topic: Trends in Reactivity: Alkali Metals vs. Noble Gases
grade: 9
subject: Chemistry
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character: Dr. Mark Lee
topic: Periodic Trends: Ionization Energy and Electronegativity
grade: 9
subject: Chemistry
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