Noble Gas - Group 8A ✏ Chemistry In a Nutshell

Rucete ✏ Chemistry In a Nutshell 

Noble Gases Summary

Elements: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn)

Electron Configuration: ns²np⁶ (Full valence shell, very stable)

Key Properties:

• Monatomic Gases (exist as single atoms, not molecules).
• Extremely low reactivity due to full valence shell.
• Krypton (Kr) and Xenon (Xe) can form compounds under specific conditions.

Key Trends & Properties

1. Noble Gases are chemically inert except Kr & Xe, which can form some compounds.
2. Oxides show a pattern in acidity/basicity:
   • Metals → Basic Oxides (e.g., Na₂O)
   • Metalloids → Amphoteric Oxides (e.g., Al₂O₃)
   • Nonmetals → Acidic Oxides (e.g., CO₂, SO₃)
3. Down a group, oxides become more basic as metallic character increases.

In a Nutshell

• All are noble gases, very stable.
• Kr & Xe can react under special conditions.