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Question

WRITE THE ELECTRONIC CONFIGURATION OF Fe3PLUS.

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Solution

Electronic Configuration of Fe: Fe has 26 electrons, so its electronic configuration is -

1S2 2S2 2p6 3S2 3p6 3d6 4S2

But after removal of 3 electrons ( 2 from 4S and 1 from 3d), it will form Fe3+, which electronic configuration is -

1S2 2S2 2p6 3S2 3p6 3d5


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