Find the EAN of Zn in [ Zn ( NH ₃ )₄ ]²⁺ ?

Step-by-step solution

The Effective Atomic Number (EAN) is calculated as EAN = Z - s + 2n , where Z is the atomic number, s is the oxidation state, and n is the coordination number. For the complex ion [ Zn ( NH ₃ )₄ ]²⁺ , zinc has atomic number Z = 30 . Ammonia is a neutral ligand, and the complex has a +2 charge, giving zinc an oxidation state of s = +2 . With four ammonia ligands, the coordination number is n = 4 . Substituting into the formula: EAN = 30 - 2 + (2 4) = 28 + 8 = 36 The Effective Atomic Number of zinc in this complex is