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Lanthanide contraction is caused due to ...

Lanthanide contraction is caused due to -

A

the appreaciable shielding on outer electrons by 4f electrons from the nuclear charge

B

the appreaciable shielding on outer electrons by 5d electrons from the nuclear charge

C

the same effective nuclear charge from Ce to Lu

D

the imperfect shielding on outer electrons by 4f electrons from the nuclear charge

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • Lanthanoid contraction is caused due to

    A
    Atomic number
    B
    Size of 4f orbitals
    C
    Effective nuclear charge
    D
    Poor shielding effect of 4f electrons

  • Lanthanoid contraction is caused due to:

    A
    The imperfect shielding on outer electrons by 4f -electrons from the nuclear charge
    B
    The aapreciable shielding on outer electrons by 4f-electrons from the nuclear charge
    C
    The aapreciable shielding on outer electrons by 5d-electrons from the nuclear charge
    D
    The same effective nuclear charge from Ce to Lu

  • lanthanoid contraction is caused due to:

    A
    the appreciable sshielding on outer electrons by 4f electrons from the nuclear charge
    B
    the appreaciable shiedling on outer electrons by 5f electrons from the nuclear charge
    C
    the same effective nuclear charge from Ce to Cu
    D
    the imperfect shielding on outer electrons by 4f electrons from the nuclear charge

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