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aventurin
aventurin
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Your mixed up with the use of half orbital. When iron become to $\ce{Fe^2+}$, it needs to donate two valance electrons away which is at the highest energy (orbital 4s$\ce{4s}$). So, that is why we write $\ce{Fe^2+}$ as 1s2 2s2 2p6 3s2 3p6 3d6$\ce{[Ar] 3d^6}$.

Your mixed up with the use of half orbital. When iron become to $\ce{Fe^2+}$, it needs to donate two valance electrons away which is at the highest energy (orbital 4s). So, that is why we write $\ce{Fe^2+}$ as 1s2 2s2 2p6 3s2 3p6 3d6.

Your mixed up with the use of half orbital. When iron become to $\ce{Fe^2+}$, it needs to donate two valance electrons away which is at the highest energy (orbital $\ce{4s}$). So, that is why we write $\ce{Fe^2+}$ as $\ce{[Ar] 3d^6}$.

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ron
ron
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Your mixed up with the use of half orbital. When iron become to $\ce{Fe^2+}$, it needneeds to donate two valance electronelectrons away which is at the highest energy (orbital 4s). So, that is why we write $\ce{Fe^2+}$ as 1s2 2s2 2p6 3s2 3p6 3d6.

Your mixed up with the use of half orbital. When iron become to $\ce{Fe^2+}$, it need to donate two valance electron away which is at the highest energy (orbital 4s). So, that is why we write $\ce{Fe^2+}$ as 1s2 2s2 2p6 3s2 3p6 3d6.

Your mixed up with the use of half orbital. When iron become to $\ce{Fe^2+}$, it needs to donate two valance electrons away which is at the highest energy (orbital 4s). So, that is why we write $\ce{Fe^2+}$ as 1s2 2s2 2p6 3s2 3p6 3d6.

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Simon-Nail-It
Simon-Nail-It
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Your mixed up with the use of half orbital. When iron become to $\ce{Fe^2+}$, it need to donate two valance electron away which is at the highest energy (orbital 4s). So, that is why we write $\ce{Fe^2+}$ as 1s2 2s2 2p6 3s2 3p6 3d6.