the total number of electrons in the 3d orbitals of cobalt co3+ is?
A) 4 B)5 C) 6 D) 7 E)10
chemistry plz help 20points!!!
2012-06-26 11:56 am
回答 (1)
2012-06-26 4:28 pm
✔ 最佳答案
The answer is : C) 6The electronic configuration of cobalt is
Co : [Ar] 3d^7 4s^2
When Co becomes Co^3+, both of the two 4s electrons and one of the 3d electronsare lost. Therefore, six 3d electronsare left.
參考: 胡雪
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