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प्रश्न
Write electronic configurations of \[\ce{Fe, Fe2+, Fe3+}\].
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उत्तर
| Species | Orbital notation |
| \[\ce{Fe}\] | 1s2 2s2 2p6 3s2 3p6 4s2 3d6 OR [Ar] 4s23d6 |
| \[\ce{Fe2+}\] | 1s2 2s2 2p6 3s2 3p6 3d6 OR [Ar] 3d6 |
| \[\ce{Fe3+}\] | 1s2 2s2 2p6 3s2 3p6 3d5 OR [Ar] 3d5 |
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