Correct configuration of fe+3 [26] is, Chemistry

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Correct configuration of Fe+3  [26] is:

(1) 1s2, 2s2, 2p6, 3s2, 3p6, 3d5         

(2) 1s2, 2s2, sp6, 3s2, 3p6, 3d3, 4s2   

(3) 1s2, 2s2, 2p6, 3s2, 3p6, 3d6, 4s2,  

(4) 1s2, 2s2, 2p6, 3s2, 3p6, 4s1

Ans: 1s2, 2s2, 2p6, 3s2, 3p6, 3d5          

 


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