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why does the boiling point of group I metals decrease down the group while that of the noble gases increase down group?

why does the boiling point of group I metals decrease down the group while that of the noble gases increase down group?

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1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
7 years ago
bioling pt is due to diff in the raeson for exlanation.
in case of alkali metal the energy bindng the atom in the crystal lattice decrease thus bioling pt.in other words decrease in metallic bond strength.
in case of noble metal these are held by weak intermolecular force of attraction which increases down the group,thus increasing bioling pt.

thanks and regrds
sunil kr
askIItian faculty

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