The total number of unpaired electrons present in the d^3 , d^4 (low spin), d^5 (high spin), d^6 (high spin) and d^7 (low spin) octahedral complex systems is _______.

Step-by-step solution

In an octahedral complex, the d-orbitals split into t_ 2g and e_g levels. For d^3 : Configuration is t_ 2g ^3 e_g^0 . Number of unpaired electrons = 3 . For d^4 (low spin): Configuration is t_ 2g ^4 e_g^0 . Number of unpaired electrons = 2 . For d^5 (high spin): Configuration is t_ 2g ^3 e_g^2 . Number of unpaired electrons = 5 . For d^6 (high spin): Configuration is t_ 2g ^4 e_g^2 . Number of unpaired electrons = 4 . For d^7 (low spin): Configuration is t_ 2g ^6 e_g^1 . Number of unpaired electrons = 1 . Total num