What is effective atomic number of cobalt in [ Co ( NH ₃ )₆ ]³⁺ if Co (Z=27) ?

Step-by-step solution

The total number of electrons present with a central metal atom or ion in a coordination complex plus the electrons donated by the ligands is known as Effective Atomic Number (EAN). The formula to calculate the EAN is as follows. Effective atomic number = Z - O . N +2 C . N Z = Atomic number O.N= Oxidation number C. N = Coordination number aligned & [ C ₀ ( NH ₃ )₆ ]³⁺ C ₀³⁺ & Z =27 . O N .=3 . C.N. =6 & EAN =27-3+2 6=36 aligned