The values of the crystal field stabilization energies for a high spin d⁶ metal ion in octahedral and tetrahedral fields, respectively, are:

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Strategy:
 Calculate CFSE for a  ion in both a weak octahedral field and a weak tetrahedral field.

Step 1: High-spin Octahedral 
Electrons distribute as .
.

Step 2: High-spin Tetrahedral 
In a tetrahedral field, levels are inverted:  is lower,  is higher.
Electrons distribute as .
.

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