character: Elemental Properties Guide
topic: Exploring Properties of Elements in the Periodic Table
grade: 9
subject: Chemistry
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character: Periodic Table Explorer
topic: Understanding Atomic Structure and Element Classification
grade: 9
subject: Chemistry
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character: Chemical Properties Investigator
topic: Analyzing Reactivity and States of Matter
grade: 9
subject: Chemistry
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character: Elements in Action
topic: Chemical Bonds and Interactions Among Elements
grade: 9
subject: Chemistry
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