The effective atomic number (EAN) of Co(CO)_4 | vedclass

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(D) The $EAN$ of $Co$ in $Co(CO)_4$ is $27 + 8 - 0 = 35$. To achieve the stable $36$ electron configuration (Krypton core),it can either gain an elect

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Both $(B)$ and $(C)$

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(D) The $EAN$ of $Co$ in $Co(CO)_4$ is $27 + 8 - 0 = 35$. To achieve the stable $36$ electron configuration (Krypton core),it can either gain an electron to form $[Co(CO)_4]^-$ (reduction) or undergo dimerization to form $Co_2(CO)_8$ where each $Co$ atom shares an electron,effectively reaching $36$ electrons per $Co$ atom. Thus,both reduction and dimerization are pathways to stability.

The effective atomic number $(EAN)$ of $Co(CO)_4$ is $35$,which makes it less stable. It attains stability by:

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