What is the Effective Atomic Number (EAN) of | vedclass

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(C) $1$. The atomic number $(Z)$ of $Co$ is $27$.$2$. The oxidation state of $Co$ in $[Co(NH_3)_6]^{3+}$ is calculated as: $x + 6(0) = +3$, so $x = +3

Vedclass · Accepted Answer

$36$

Vedclass · Answer

(C) $1$. The atomic number $(Z)$ of $Co$ is $27$.$2$. The oxidation state of $Co$ in $[Co(NH_3)_6]^{3+}$ is calculated as: $x + 6(0) = +3$, so $x = +3$.$3$. The number of electrons in $Co^{3+}$ ion is $27 - 3 = 24$.$4$. Each $NH_3$ ligand donates $2$ electrons. Since there are $6$ ligands, total electrons donated = $6 	imes 2 = 12$.$5$. $EAN = (Z - 	ext{oxidation state}) + (2 	imes 	ext{coordination number}) = 24 + 12 = 36$.

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

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