Uploaded August 2025 | Updated September 2026, 2 weeks ago

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Noble Gases: Group 18

Dr. DeBacco

Noble Gases: Group 18
Atomic Structure: Full valence shell
*Complete stability

Almost zero reactivity
Some exceptions with heavier elements under special conditions)

Trends:
Colorless, odorless, nonflammable gases
Heavier noble gases can form a few compounds

Unique Features of Noble Gases
Unique Features:
Helium is used in balloons because it’s lighter than air
Neon is famous for glowing signs

Uses:
Argon in welding (creates inert atmospheres)
Xenon in headlights and anesthesia



Link to Lecture Slides: drive.google.com/file/d/1hdcHszOQyNOIirIM6nhioH3JdWgLKIGc/view?usp=drive_link

*Due to the description character limit the full work cited for "Nobel Gases Group 18" can be viewed at... docs.google.com/document/d/1GWsyjNa9e5qYaoHVHmJ3vcQNiIFQ5EVz/edit?usp=drive_link&ouid=104237452697237972847&rtpof=true&sd=true