What is the electron configuration for Fe_2?

1 Answer
marfre
Jun 16, 2017

The ion Fe^(2+) electron configuration is 1s^2 2s^2 2p^6 3s^2 3p^6 3d^6

Explanation:

The electron configuration for iron, Fe is 1s^2 2s^2 2p^6 3s^2 3p^6 3d^6 4s^2

The orbital filling order for Fe is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^6

Iron does not occur as Fe_2 in nature. It is not a diatomic element.

The ion Fe^(2+) electron configuration is 1s^2 2s^2 2p^6 3s^2 3p^6 3d^6.

It is missing the two valence electrons in the 4s^2 orbital. This makes the ion a cation, an ion that is positively charged because it has lost valence electrons.

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