character: Mr. Johnson
topic: Element Groups and Trends in Atomic Size
grade: 11
subject: Chemistry
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character: Ms. Chen
topic: Periodic Trends: Atomic Radius and Ionic Size
grade: 11
subject: Chemistry
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character: Dr. Smith
topic: Chemical Properties of the Alkali Metals
grade: 11
subject: Chemistry
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character: Mrs. Lee
topic: Understanding Ionic and Covalent Radii
grade: 11
subject: Chemistry
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