Question

noble gase crystallize in close packed structure yet the melting point of noble gas crystal are very low. explain why?​

Answer 1

Answer:

Noble gases and metals crystallise with closed packing structures yet the melting point of noble gas crystals is exceptionally low? Noble gases are monoatmoic and the only interatomic forces in them are weak London forces. Hence, they liquify and ver low temperatures and hence have low melting points.

Explanation:

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Answer 2

Answer:

In noble gases, atoms in molecular solids are held together by weak van der waals forces and due to this reason, noble gases show low melting point while in metallic solid, metallic bond exists between the constituent atom