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The alkalimetals are low melting. Which ...

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

A

Na

B

K

C

Rb

D

Cs

Text Solution

Verified by Experts

The correct Answer is:
D
Among alkali metals, melting point decreases as the strength of metallic bonding decreases with increasing size of the atom. Thus, Cs has the lowest melting point and melts at `30^@C`.
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Knowledge Check

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

    A
    Na
    B
    K
    C
    Rb
    D
    Cs

  • Which of the following molecules, in pure form are unstable at room temperature?

    A
    B
    C
    D

  • Which of the alkali metals is having least melting point?

    A
    Na
    B
    K
    C
    Rb
    D
    Cs

    • Similar Questions

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    Which of the following pair of alkali metals is more denser than water?

    The alkali metal which is liquid at room temperature is

    Which of the following liquid alkali metal is used as a coolant in fast breeder nuclear reactors?

    Which of the following melts in boiling water

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