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d-block elements have high melting and b...

d-block elements have high melting and boiling points. Why?

Text Solution

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This is due to strong metallic bond between the atoms of these elements, due to the presence of It paired electrons: Greater the number of unppired electrons, stronger is the metallic bonding.
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Knowledge Check

  • Which one of the following elements has the highest melting point? (1)Boron (2)Aluminium (3)Gallium (4)Thallium

    A
    boron
    B
    aluminium
    C
    gallium
    D
    thallium

  • Assertion : s-block elements do not occur in free state. Reason : s-block elements are highly electropositive in nature.

    A
    If both (A) and (R) are correct and (R) is the correct explanation of (A).
    B
    If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
    C
    If (A) is correct, but (R) is incorrect.
    D
    If both (A) and (R) are incorrect.

  • Whichof the following has high boiling point?

    A
    NH_3'
    B
    PH_3'
    C
    SbH_3'
    D
    AsH_3'

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