character: Noble Gases Overview
topic: Noble Gases, Properties and Uses of Noble Gases
grade: 9
subject: Chemistry
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character: Argon
topic: Properties and Uses of Argon in Industry
grade: 9
subject: Chemistry
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character: Neon
topic: Uses of Neon in Signage and Lighting
grade: 9
subject: Chemistry
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character: Krypton
topic: Properties and Applications of Krypton in Photography
grade: 9
subject: Chemistry
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