character: Mr. Robert Lewis
topic: Valence Electrons and Molecular Structure
grade: 11
subject: Chemistry
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character: Dr. Linus Pauling
topic: Electronegativity and Bonding
grade: 11
subject: Chemistry
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character: Marie Curie
topic: Chemical Properties of Elements
grade: 11
subject: Chemistry
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character: Dmitri Mendeleev
topic: Periodic Trends and Valency
grade: 11
subject: Chemistry
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