If EAN of central metal cation M²⁺ in a non-chelating complex is 36 and atomic no.of metal M is 26, then the number of monodentate ligands in this complex are

EAN=Z−X+Y
Z = Atomic number of the metal
X = Number of electrons lost during the formation of the metal ion from its atom
Y = Number of electrons donated by the ligands
EAN=Z−X+Y
36=26−2+Y
Y=12
Hence, the number of monodentate ligand in this complex are 12 / 2 ​=6.