The alkali metals are low melting. Which...

The alkali metals are low melting. Which of the following alkali metals is expected to melt if the room temperature rises to `30^(@)`C?

A

Na

B

K

C

Rb

D

Cs

Verified by Experts

The correct Answer is:

D

The order of melting point of alkali metals is `LigtNagtKgtRbgtCs`
`therefore` Cs has lowest melting point `(28.44^(@)C)` and will melt at `30^(@)C`

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