character: Chemistry Teacher
topic: Element Groups and Trends in Atomic Size
grade: 11
subject: Chemistry
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character: Physics Instructor
topic: Periodic Table and Element Properties
grade: 11
subject: Chemistry
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character: Science Tutor
topic: Trends in the Periodic Table
grade: 11
subject: Chemistry
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character: Chemistry Lab Assistant
topic: Comparing Element Properties by Group
grade: 11
subject: Chemistry
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