character: Dr. Sarah Johnson
topic: The Role of Valence Electrons in Chemical Reactions
grade: 9
subject: Chemistry
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character: Dr. Emily Carter
topic: Understanding Ionic and Covalent Bonds
grade: 9
subject: Chemistry
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character: Mr. George Brown
topic: Electron Configuration and Chemical Properties
grade: 9
subject: Chemistry
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character: Ms. Linda Thompson
topic: Periodic Trends and Their Effects on Reactivity
grade: 9
subject: Chemistry
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