Verified Solution • 2025–26 Session
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QJEEM23Ch3c65: JEE Main 2023 Chemistry - Class 11 JEEM23Ch3c65 Solution: Alkali metal from the following with least melting point is :
Alkali metal from the following with least melting point is :
Multiple Choice Options
- A
- B
- C
- D
Step-by-Step Verified Solution
The alkali metals are the elements in Group 1 of the periodic table. They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs).
The melting point of these metals decreases down the group as the size of the atoms increases. This is because the metallic bonding weakens as the atomic size increases, resulting in a lower melting point.
Therefore, the alkali metal with the lowest melting point is cesium (Cs).
So, the correct option is Option D, Cs.