Four sucessive members of the first two transition elements are listed – InterviewSolution

1.	Four sucessive members of the first two transition elements are listed below with their atomic numbers. Which one of them is expected to have highest third ionisation enthalpy ?
Answer» Vanadium (Z = 23) Chromium (Z = 24) Manganese (Z = 25) Iron (Z = 26) Solution :For third ionisation energy, the last configuration are : `V : 3d^(3) : Cr : 3d^(4) : Mn : 3d^(5) , Fe : 3d^(6)` So Mn has STABLE configuration due to HALF FILLD d-subshell.

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