The atomic number of V,Cr, Mn and Fe are...

The atomic number of `V,Cr, Mn and Fe` are respectively `23,24,25 and 26.` Which one of these may be expected to have the highest second ionization enthalpy?

A

Cr

B

Mn

C

Fe

D

V

Text Solution

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The correct Answer is:

A

Cr after the loss of one electron acquires stable half filled `3d^(5)` configuration. Thus, its second ionization enthalpy is highest.

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