alleryGroup 18 elements are termed noble gases because they form very few:
AMolecules
BMixtures
CSolutions
DCompounds
Answer & Solution
Correct answer: D. Compounds
1. Their valence shell orbitals are completely filled.
2. That leaves them little reason to react.
3. So they form very few compounds.
_Source: syllabus Chemistry, Chapter 7, The p-Block Elements._
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