Question

Write the electronic configuration of iron in fecl2 and fecl3

Answer 1

Answer:

Electronic configuration of fe is

4s2,3d6

Explanation:

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Answer 2

Ferrus is a transition metal.

FeCl_2

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

Electronic configuration is given by

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

FeCl_3

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

Electronic configuration is given by

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