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Chemistry
Lanthanoid contraction is due to
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Q. Lanthanoid contraction is due to
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A
the same effective nuclear charge
B
partially filling of f and d-orbitals
C
the imperfect shielding on outer electrons by 4f-electrons from the nuclear charge
D
the perfect shielding on outer electrons by 4f-electrons from the nuclear charge
Solution:
Lanthanoid contraction is due to poor shielding of electrons of 4f-orbital. It is even less than the shielding shown by d-electron.