Because of lanthanoid contraction, which of the following pair sof ele – InterviewSolution

1.	Because of lanthanoid contraction, which of the following pair sof elements have nearly same atomic raddi ? (Numbers in the parenthesis are atomic numbers)
Answer» Zr(40) and Nb(41) Zr (40) and Hf(72) Zr(40) and Ta (73) Ti (22) and Zr (40) Solution :DUE to lanthanoid conatraction atomic RADII of Zr and Hf is ALMOST similar.

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