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Difficulty: EasyNoble Gases: Isolation, Electronic Structure, and Uses

Match each noble gas listed on the left with its corresponding primary industrial application or characteristic use on the right.

  • HeliumUsed in weather balloons and deep-sea diving breathing mixtures
  • NeonUsed in advertising signs and high-voltage indicator lamps
  • ArgonUsed to create an inert shielding gas in electric arc welding
  • RadonUsed in radiotherapy for cancer treatment due to its radioactivity

Answer

Helium matches with weather balloons and diving gas mixtures; Neon matches with advertising signs; Argon matches with arc welding inert atmosphere; Radon matches with cancer radiotherapy.
Each noble gas is matched to its unique application based on its physical and chemical properties: Helium for low density and low blood solubility, Neon for glowing light discharge, Argon for unreactive shielding during welding, and Radon for cancer radiotherapy.

Step-by-Step Solution

1
Identify the primary application of Helium.
Helium's low density and minimal blood solubility pair it with weather balloons and deep-sea diving mixtures.
Prevents decompression sickness in divers and provides buoyancy in balloons.
2
Identify the primary application of Neon.
Neon emits a distinct reddish-orange light in electrical discharge tubes used for advertising signs.
Excited neon gas emits characteristic light when electrical discharge occurs.
3
Identify the primary application of Argon.
Argon serves as an inert shielding gas in electric arc welding.
Prevents atmospheric oxygen and nitrogen from reacting with hot metals being welded.
4
Identify the primary application of Radon.
Radon is radioactive and used in cancer radiotherapy.
Radiation emitted during radioactive decay destroys targeted cancer cells.

Key Concept

Industrial applications and chemical inertness of noble gases
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Topics

Noble Gases: Isolation, Electronic Structure, and Uses

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