character: Dr. Smith
topic: Electron Configurations and Their Importance in the Periodic Table
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Understanding Atomic Structure and Electron Shells
grade: 9
subject: Chemistry
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character: Mr. Davis
topic: How Electron Configurations Determine Element Reactivity
grade: 9
subject: Chemistry
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character: Mrs. Lee
topic: The Role of Valence Electrons in Chemical Bonding
grade: 9
subject: Chemistry
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