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Chemistry
Lanthanoid contraction is caused due to :
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Q. Lanthanoid contraction is caused due to :
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A
the appreciable shielding on outer electrons by 4f electrons from, the nuclear charge
B
the appreciable 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
Solution:
Lanthanoid contraction is due to ineffective shielding produced by larger f-subshell.