A) Vanadium \[(Z=23)\]
B) Manganese \[(Z=25)\]
C) Chromium \[(Z=24)\]
D) Iron \[(Z=26)\]
Correct Answer: B
Solution :
After losing two electrons \[Mn\] gets half-filled 'd'-orbital which is very stable. Hence, 3rd ionisation enthalpy is maximum for \[Mn\].You need to login to perform this action.
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