character: Chemistry Coach
topic: Periodic Table and Electron Arrangements
grade: 9
subject: Chemistry
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character: Electron Explorer
topic: Understanding Electron Configurations
grade: 9
subject: Chemistry
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character: Periodic Pete
topic: Learning About the Elements
grade: 9
subject: Chemistry
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character: Valence Victor
topic: Valence Electrons and Chemical Bonds
grade: 9
subject: Chemistry
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