A transition metal 'M' among Sc, Ti, V , Cr, Mn and Fe has the highest second ionisation enthalpy. The spin only magnetic moment value of M+ ion is ______ BM (Near integer) (Given atomic number Sc : 2

Question

A transition metal 'M' among Sc, Ti, V , Cr, Mn and Fe has the highest second ionisation enthalpy. The spin only magnetic moment value of M+ ion is ______ BM (Near integer) (Given atomic number Sc : 21, Ti : 22, V : 23, Cr : 24, Mn : 25, Fe : 26)

Prashant Kotian · Accepted Answer

Correct answer: .. Among given metals, Cr has maximum IE2 because Second electron is removed from stable configuration 3d5 Cr+ [Ar] 3d5 4s0 No of unpaired e– in Cr+ is 5, n = 5 So, Magnetic moment = n(n 2) B.M  = 5(5 2)  = 5.92 BM  6

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