A) \[Na\]\[K\]\[Rb\]\[Cs\]
B) \[Li\]\[Be\]\[B\]\[C\]
C) \[Fe\]\[Co\]\[Ni\]\[Cu\]
D) \[F\]\[Cl\]\[Br\]\[I\]
Correct Answer: C
Solution :
\[Fe,\,Co,\,Ni,\,Cu\]. Due to shielding of d-electrons, the effect of increased nuclear charge due to increase in atomic no. neutralised. Consequently atomic radius remains almost unchanged after chromium.You need to login to perform this action.
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