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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

`Zn (40) and Nb (41) `

B

`Zr (40) and Hf (72)`

C

`Zr(40) and Ta(73)`

D

`Ti(22) and Zr(40)`

Text Solution

Verified by Experts

The correct Answer is:
B
Zr and Hf has nearly same radius due to lanthanide contraction.
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