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Q.

The third ionization enthalpy is minimum for

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An Intiative by Sri Chaitanya

a

Mn

b

Fe

c

Co

d

Ni

answer is D.

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Detailed Solution

The electronic configuration of iron is 1s2 2s2 2p6 3s2 3p6 4s2 3d6, Third ionization energy means 4so and 3d5, The electronic configuration is very stable and half filled.

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