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Because of lanthnoid contraction, which ...

Because of lanthnoid contraction, which of the following pairs of elements have nearly same atomic radii ? (Number in the parenthesis are atomic numbers)

A

Zr(40) and Hf (72)

B

Zr (40) and Ta (73)

C

Ti (22) and Zr (40)

D

Zr (40) and Nb (41)

Text Solution

Verified by Experts

The correct Answer is:
A
Due to lanthanide contraction .4d. and .5d. series of elements have almost same atomic radii.
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