alculate the EANEAN of central atom in the following complex:[Cu(CN)4]3−

To calculate the Effective Atomic Number (EAN) of the central atom in the complex [Cu(CN)4]3−, follow these steps:

1. Identify the central atom: In this complex, the central atom is Copper (Cu).

2. Determine the atomic number of the central atom: The atomic number of Copper (Cu) is 29.

3. Calculate the number of electrons donated by the ligands: In this complex, the ligand is Cyanide (CN−). Each Cyanide ion donates one electron to the central atom. Since there are four Cyanide ions, they donate a total of 4 electrons.

4. Calculate the number of electrons added or removed due to the charge of the complex: The complex has a charge of -3, which means that 3 extra electrons are added to the central atom.

5. Add up all the electrons: The EAN of the central atom is the sum of the atomic number of the central atom and the number of electrons donated by the ligands and the charge of the complex. So, EAN = 29 (atomic number of Cu) + 4 (electrons from ligands) + 3 (electrons from charge) = 36.

So, the Effective Atomic Number (EAN) of the central atom in the complex [Cu(CN)4]3− is 36.