What is the effective atomic number of cobalt | vedclass

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(D) The effective atomic number $(EAN)$ is the total number of electrons present with the central metal atom or ion in a coordination complex,includin

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$36$

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(D) The effective atomic number $(EAN)$ is the total number of electrons present with the central metal atom or ion in a coordination complex,including the electrons donated by the ligands.The formula to calculate the $EAN$ is:$EAN = Z - O.N. + 2 	imes C.N.$Where:$Z = 	ext{Atomic number} = 27$$O.N. = 	ext{Oxidation number of } Co 	ext{ in } [Co(NH_3)_6]^{3+} = +3$$C.N. = 	ext{Coordination number of } Co = 6$Substituting the values:$EAN = 27 - 3 + 2 	imes 6 = 24 + 12 = 36$.

What is the effective atomic number of cobalt in $[Co(NH_3)_6]^{3+}$ if $Co$ has atomic number $Z=27$?

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