Question

The magnetic moment of the complex kr (CoF3) is 5.oBM.Calculate the total CFSE​

Answer 1

Answer:

CoF3 - Co^3 + 3F^-

Co = 1s2, 2s2 ,2p6, 3s2, 3d7 ,4s2

Co^3 = 1s2, 2s2 ,2p6 , 3s2 ,3d6

as F is WFl so no paring occur

CFSE = -0.4 × t2g + 0.6 ×eg

= -0.4 × 4 + 2×0.6

= -1.6 + 1.2 = -0.4