Respuesta :

Ferrus is a transition metal.

FeCl_2

  • Valency of Fe is 2 .
  • Hence Z=26-2=24

Electronic configuration is given by

[tex]\\ \sf\longmapsto [Fe]^{2+}=1s^22s^22p^63s^23p^64s^23d^4[/tex]

FeCl_3

  • Valency of Fe is 3
  • Hence Z=26-3=23

Electronic configuration is given by

[tex]\\ \sf\longmapsto [Fe]^{3+}=1s^22s^22p^63s^23p^64s^23d^3[/tex]

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