Magnetic moment of a divalent ion in aqueous solution of an element with atomic number 25 is :
Answer & explanation
Correct answer: option 4
The compound with atomic number 25 is Manganese, its electronic configuration is:
The electronic configuration in the +2 oxidation state is
Number of unpaired electrons = 5
So, magnetic moment, \(\mu = \sqrt{n(n + 2)}\)
\(\mu = \sqrt{5( 5 + 2)}\)
\(\mu = \sqrt{35}\)
\(\mu = 5.92\) BM