character: Electron Arrangement Explorer
topic: Periodic Table and Electron Configuration
grade: 9
subject: Chemistry
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character: Chemistry Trend Tracker
topic: Understanding Periodic Trends
grade: 9
subject: Chemistry
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character: Element Interactor
topic: Elements and Their Electronic Structures
grade: 9
subject: Chemistry
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character: Atomic Structure Analyst
topic: Link Between Electron Levels and Periodic Behavior
grade: 9
subject: Chemistry
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