What is effective atomic number ? Calculate effective atomic number of copper (Z = 29) in `[C(NH_(3))_(4)]^(2+)`

Explanation

Effective atomic number : It is total number of electrons around the central metal ion present in a complex and calculated as the sum of the electrons on the metal ion and the number of electrons donated by the ligands.
`EAN=Z-X+Y`
where, `" "`Z = Atomic number of the metal
X = Number of electrons of the metal ion from its atom
Y = Number of electrons donated by the ligands `[Cu(NH_(3))_(4)]^(2+)`
Z = atomic number 29
X= 2
Y = 8 `EAN = Z-X+Y`
`=29-2+8=35`
EAN of copper is 35.