F. what is the orbital diagram and the corresponding electron configuration of 26Fe?

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F. what is the orbital diagram and the corresponding electron configuration of 26Fe?

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Answer 1 · 2018-03-31T19:48:32

Iron has the configuration $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{6} 4 s^{2}$ $1s^2 2s^2 2p^6 3s^2 3p^6 3d^6 4s^2$

Explanation:

Electron configurations of elements can be a bit confusing, and the transition metals are a case in point.

$_{26} Fe$ $""_(26) "Fe"$ has the configuration

$1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{6} 4 s^{2}$ $1s^2 2s^2 2p^6 3s^2 3p^6 3d^6 4s^2$ .

A point to be noted :

Note that the 4s orbitals are filled AFTER you add six electrons to the 3d orbitals. The 3d orbitals belong with the n=3 orbitals.

So, you will have

2 electrons in the n=1 (1s) shell,

8 in the n=2 (2s and 2p) shell,

8+6 = 14 in the n=3 (3s, 3p, and 3d) shell,

2 in the n=4 (4s) shell.

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F. what is the orbital diagram and the corresponding electron configuration of 26Fe?

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Explanation:

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