The coordination number of a central metal atom in a complex is determined by
The number of ligands around a metal ion bonded by sigma and pi-bonds both.
The number around a metal ion bonded by pi-bonds
The number of ligands around a metal ion bonded by sigma bonds
The number of only anionic ligands bonded to the metal ion
As we have learned
Ligands -
Ions and molecules bounds to the Central atom/ion in the coordination entity are called ligands.
-The number of atoms of the ligand that are directly bounded to the central metal atom or ion by coordinate bond is known as the coordination number of the metal atom or ion coordination number of metal = number of bonds formed by metal with ligand .
Option 1)
The number of ligands around a metal ion bonded by sigma and pi-bonds both.
Option 2)
The number around a metal ion bonded by pi-bonds
Option 3)
The number of ligands around a metal ion bonded by sigma bonds
Option 4)
The number of only anionic ligands bonded to the metal ion
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