A) \[Zr\left( 40 \right)\] and \[Nb\left( 41 \right)\]
B) \[Zr\left( 40 \right)\] and\[Hf\left( 72 \right)\]
C) \[Zr\left( 40 \right)\] and \[Ta\left( 73 \right)\]
D) \[Ti\left( 22 \right)\] and \[Zr\left( 40 \right)\]
Correct Answer: B
Solution :
[b] Due to lanthanoid contraction atomic radii of Zr and Hf is almost similar.You need to login to perform this action.
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