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State reason for the following Unlike cr3+ mn2+ fe3+ and the subsequent othr M2+ ions of the 3d serieselements the 4d and 5d series metals genealy donot form stable cationuc species

Posted by Tanisha Kataria 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Arya Singh 5 years, 10 months ago

Bcz 3rd ionization enthalpy of 4d and 5d series is high While in the case of Cr+3 and Cr+2, Cr+3 is more stable bcz of fully filled t2g In the case of Fe+3 it has d5 configuration which is half filled And same in the case of Mn+2

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