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Lanthanoid contraction is caused due to:...

Lanthanoid contraction is caused due to:

A

the same effective nuclear charge from Ce to Lu

B

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

C

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

D

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

Text Solution

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The correct Answer is:
B
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