Question
Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest third ionization enthalpy?
Answer: Option D
:
D
25Mn = 3d54s2
After losing two electron electronic configuration will be like this Mn2+(3d5)and this is most stable configuration due to half filled orbitals hence third ionization enthalpy will be highest in this case.
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:
D
25Mn = 3d54s2
After losing two electron electronic configuration will be like this Mn2+(3d5)and this is most stable configuration due to half filled orbitals hence third ionization enthalpy will be highest in this case.
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