character: Prof. Johnson
topic: Factors Influencing Electronegativity in Elements
grade: 9
subject: Chemistry
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character: Ms. Smith
topic: Periodic Trends in Elements
grade: 9
subject: Chemistry
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character: Dr. Lee
topic: Atomic Structure and Its Effect on Chemical Properties
grade: 9
subject: Chemistry
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character: Mr. Davis
topic: Understanding Ionic and Covalent Bonds
grade: 9
subject: Chemistry
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