ChemistryThe valence shell electronic configuration of the Fe2+  is

The valence shell electronic configuration of the Fe2+  is

  1. A

    4s0   3d6

  2. B

    3s1   3d7

  3. C

    3s0   3d8

  4. D

    3s2   3d5

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    Solution:

    During the formation of cations, electrons are lost while in the formation of anions, electrons are added to the valence shell. The number of electrons added or lost is equal to the numerical value of the charge present on the ion. Following this general concept, we can write the electronic configuration of all the ions given in the question.

    Valence shell Configuration of Fe = [Ar]3d64S2 Valence shell Configuration of Fe+2 =[Ar] 3d64S0  

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