JEE Main20249 Apr 2024Evening ShiftChemistryd and f Block ElementsActual
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 ))
Correct answer
0
Step-by-step solution
Among given metals, Cr has maximum IE ₂ because Second electron is removed from stable configuration 3 d^5 Cr ⁺:[ Ar ] 3 ~d ^5 4 ~s ^0 No of unpaired e ⁻ in Cr ⁺ is 5, n =5 aligned So, Magnetic moment & = n ( n +2) B.M & = 5(5+2) =5.92 BM 6 aligned