character: Ms. Davis
topic: Electronegativity and Periodic Trends
grade: 9
subject: Chemistry
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character: Mr. Smith
topic: Understanding Periodic Table Elements
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Chemical Bonding and Electronegativity
grade: 9
subject: Chemistry
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character: Dr. Lee
topic: Trends in Atomic Size and Ionization Energy
grade: 9
subject: Chemistry
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