In a complex [CrF6]-3. Cr is a central metal ion and fluoride is joined as ligand. the ground state electronic configuration of Cr is
Now the principle quantum number of valance shell is 4 (n =4) thus allowed values of azimuthal quantum numbers are 0,1,2,3 i.e. p-orbital and d-orbital are present but are empty so the configuration can be written as
The box representation can be written as
Now when F- ion joins as ligand it donates a pair of electron to the central metal atom and ligand always occupy a vacant orbital (as maximum two electrons can be accommodated in an orbital) thus the electronic configuration of complex would be
The shape of the molecule octahedral or square bi-pyramidal
Now the principle quantum number of valance shell is 4 (n =4) thus allowed values of azimuthal quantum numbers are 0,1,2,3 i.e. p-orbital and d-orbital are present but are empty so the configuration can be written as
The box representation can be written as
Now when F- ion joins as ligand it donates a pair of electron to the central metal atom and ligand always occupy a vacant orbital (as maximum two electrons can be accommodated in an orbital) thus the electronic configuration of complex would be
The shape of the molecule octahedral or square bi-pyramidal
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