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in d block elements why there is a dip in mn in graph of ionisation enthalpies

in d block elements why there is a dip in mn in graph of ionisation enthalpies


 

Grade:12

1 Answers

Swapnil Saxena
102 Points
10 years ago

Mn has a fully filled d orbital as such it gains extra stability (Symmetrical electronic configuration) and due to this symmetry it has an exceptionally high third ionization enthalpy.

However in first and second ionization enthalpy no such dip is obseved. 

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