character: Reactivity Ranger
topic: Reactivity Series
grade: 11
subject: Chemistry
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character: Electron Explorer
topic: Valence Electrons and Reactivity
grade: 11
subject: Chemistry
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character: Metal Mastermind
topic: Alkali Metals and Their Reactivity
grade: 11
subject: Chemistry
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character: Noble Gas Guardian
topic: Noble Gases and Chemical Reactivity
grade: 11
subject: Chemistry
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