Question

Calculate magnetic moment of fe2+(aq) ion (z=26)

Answer 1

Answer:

Magnetic Moment Formula : (n(n+2))^½ where n is the number of unpaired electrons.

Explanation:

Fe = 26

Fe 2+ = 24

Electronic Configuration of Fe: 1s2 2s2 2p6 3s2 3p6 4s2 3d6

Electronic Configuration of Fe 2+ : 1s2

2s2 2p6 3s2 3p6 3d6 [2 electrons are removed from the outermost shell 4s2].

From this we can clearly see that there are 4 unpaired electrons in the d orbitals of the FE 2+ atom. So magnetic Moment is given as : [4 × (4+2)]^½= √24

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