The Effective Atomic Number (EAN) of Co in [C | vedclass

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(C) The formula for Effective Atomic Number $(EAN)$ is given by: $EAN = Z - 	ext{oxidation state} + 2 	imes 	ext{coordination number}$ For $[Co(NH_

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$36$

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(C) The formula for Effective Atomic Number $(EAN)$ is given by: $EAN = Z - 	ext{oxidation state} + 2 	imes 	ext{coordination number}$ For $[Co(NH_3)_6]^{3+}$: $1$. The atomic number $(Z)$ of $Co$ is $27$. $2$. The oxidation state of $Co$ is $x + 6(0) = +3$,so $x = +3$. $3$. The coordination number is $6$ (since $NH_3$ is a monodentate ligand). $EAN = 27 - 3 + 2(6) = 24 + 12 = 36$. Thus,the $EAN$ of $Co$ is $36$.

The Effective Atomic Number $(EAN)$ of $Co$ in $[Co(NH_3)_6]^{3+}$ is:

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