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- #National Eligibility Cum Entrance Test
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- #s- Block Elements ( Alkali and Alkaline earth metals )
- #Chemistry
Which alkali metal has the highest boiling point?
Option: 1
Li
Option: 2
Na
Option: 3
K
Option: 4
Rb
Answers (1)
Li has highest melting point among alkali metals. The melting point decreases down the group due to increase in atomic size. Due to larger atomic size, the binding energies of their atoms in the crystal lattice is low. So, the melting point decreases from Li to Rb.
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