Question

VIU x 10.6 pts.) The spin only magnetic moment of a certain octahedral Cr(III) complex is 4.05 He. What is the d-electron configuration of the Cr(III) ion?. 13 z

Answer 1

10 Cr Cr3+ - [Ar]3d 45' - [Ar]3d" - - - - bazy centre free doosbital Talala dag octatedral complex Oxides Mno Feo Poultice enthalpies 3840 3921 3988 Nio 4074 Mno, [Ar]3d5 LFSE = - 3*(-0.4 so ) + 2x (0.640) - 1.246 + 1.240 Foo Fe2+ [Ar] ds. Alang- LESE = 4x(-0.440) - 2x 0.6 to -0.440

Coo Coat - [Ar]3d7. न all tulad LFSE = s(-0.4 tot 280.650 - 2.0 to 4 1.2 to - 0.8 to Nio . Ni2+ = [Ar]3d8. Youri 6X (-0.4 to) + 2x 0.650. - 2:4 so + 112 so - 1.240. I the ender LISE no < values increases in FeO <coo < Nio. That's why lattice no L enthalpy increases Feo <coo <Nio, in the order