Group 18 - Noble Gases
Xenon forms compounds because:
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About This Question
- Subject
- chemistry
- Chapter
- p-block elements
- Topic
- group 18 - noble gases
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
All of these
For a long time, Noble gases were called 'inert'. However, Xenon (Xe) can form stable compounds (like XeF2,XeF4) for several reasons:
- Ionization Energy: Xe has the lowest I.E. among noble gases (comparable to Oxygen), allowing it to lose/share electrons with highly electronegative atoms (F or O).
- Atomic Size: Large size means valence electrons are less tightly held by the nucleus.
- d-Orbitals: The availability of empty 5d orbitals allows Xenon to promote its electrons and expand its octet to accommodate more than 8 valence electrons.
This easy difficulty chemistry question is from the chapter p-block elements, covering the topic of group 18 - noble gases. It appeared in the 2025 exam.
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