Cấu hình của ion Fe3+ là
A.\(1{{\text{s}}^2}2{{\text{s}}^2}2{p^6}3{{\text{s}}^2}3{p^6}3{{\text{d}}^6}4{{\text{s}}^2}\)
B.\(1{{\text{s}}^2}2{{\text{s}}^2}2{p^6}3{{\text{s}}^2}3{p^6}3{{\text{d}}^6}\)
C.\(1{{\text{s}}^2}2{{\text{s}}^2}2{p^6}3{{\text{s}}^2}3{p^6}3{{\text{d}}^5}\)
D.\(1{{\text{s}}^2}2{{\text{s}}^2}2{p^6}3{{\text{s}}^2}3{p^6}3{{\text{d}}^4}\)
A.\(1{{\text{s}}^2}2{{\text{s}}^2}2{p^6}3{{\text{s}}^2}3{p^6}3{{\text{d}}^6}4{{\text{s}}^2}\)
B.\(1{{\text{s}}^2}2{{\text{s}}^2}2{p^6}3{{\text{s}}^2}3{p^6}3{{\text{d}}^6}\)
C.\(1{{\text{s}}^2}2{{\text{s}}^2}2{p^6}3{{\text{s}}^2}3{p^6}3{{\text{d}}^5}\)
D.\(1{{\text{s}}^2}2{{\text{s}}^2}2{p^6}3{{\text{s}}^2}3{p^6}3{{\text{d}}^4}\)
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