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Explainby givingresonsof stabilityof completelyfilled andhalffilledsubshell |
Answer» Solution :Symmetricaldistributionof electron: Thecompletelyfille orhalffilledsubshellhaveand arethereforerelatively smalltheelectronsare morestrongly attractedby THENUCLEUS.  Exchangeenergy : Thestabilizingeffect ariseswhenevertwo ormoreelectrons with thesameand theenergyreleaseddue tothisexchange incalledexchangeenergy . if `d^(5)` electronconfigurationall fiveelectron havetakeplaceand moreenergyreleaseand OS`d^(5)`ismorestableconfiguration . Sohalffilledand completelyfilled`3d^(5) ` and `3d^(10)` posses morestability (i) Relativelysmallshielding (ii)Smaller coulombicrepulsion energyand (III) largerexchangeenergy. |
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