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Lanthanoide contraction affects on...

Lanthanoide contraction affects on

A

basicity of lanthanoide hydroxides

B

atomic and ions radii of post lanthanoide

C

similarty in properties of `2 ^(nd) and 3 ^(rd)` row transition elements

D

all of these

Text Solution

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The correct Answer is:
D
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Lanthanoids.

Knowledge Check

  • Lanthanoid contraction means :

    A
    small atomic sizes of lanthanoid elements
    B
    small ionic size of lanthanoid ions.
    C
    smaller atomic size of lanthanoids as compared to transition element in the same period
    D
    decrease in atomic and ionic radii of the element of lanthanoid series in moving from left to the right.

  • Lanthanoid contraction is due to:

    A
    Negligible screening effect of 4f orbitals
    B
    Negligible screening effect of 5f orbital
    C
    Decreasing nuclear charge
    D
    Increasing screening effect

  • Reason of lanthanoid contraction is

    A
    Decreasing screening effect
    B
    Negligible screening effect of 'f' orbitals
    C
    Increasing nuclear charge
    D
    Decreasing nuclear charge

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