What is the ground state(A or E) for Octahedral d7,d8 and d9 ?:For an A ground state, a= 4. and for an E ground state, a= 2 Also Is it high or low spin? Give two examples for each of them (d7,d8and d9) and Calculate ueff ( like the example in the attachment)for each? \mu \mathrm{eff}=\mu(\text { spin-only })(1-\alpha \lambda / \Delta o c t)

Fig: 1

Fig: 2