Question

Determine EAN of the metal ion in $\left[Cu\right(N{H}_3{)}_4{]}^{2+}$.

Answer 1

effective atomic no. (EAN)

EAN= Z – X + 2nL

here

Z= Atomic number of the metal(centre atom) in the complex

x = Oxidation state of the metal in the complex

n= Number of the ligands

L = Number of co-ordinate bonds formed by ligand

here,

Z = 29

X = +2

n= 2

L= 2

so,

EAN is = $29-(+2)+(2\times 2\times 2)$

= 27+8 = 35

Answer is 35