Which one of the following is the main cause of lanthanoid contraction – InterviewSolution

1.	Which one of the following is the main cause of lanthanoid contraction? (a) Poor shielding effect of 5f sub-shell (b) More shielding effect of 4f sub-shell (c) Poor shielding effect of 4f sub-shell (d) More shielding effect of 5f sub-shel
Answer» (c) Poor shielding effect of 4f sub-shell

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