Which of the following has magnetic moment value of 5.9?
Answer & explanation
Correct answer: option 2
Fe3+ has a magnetic a magnetic moment value of 5.9.
26Fe : [Ar]4s23d6
Fe3+ : [Ar]3d5
Magnetic moment, u = \(\sqrt {n(n+2)}\)
u = \(\sqrt {5(5+2)}\) = \(\sqrt {35}\) = 5.9