which of the metal ions in the

2010-04-14 12:09 am

which of the metal ions in the following complex ions has d5 electron configuraton?
A) {V(h2o)6}2+
B){Ni(NH3)6}3+
C){Co(CN)6}3-
D){Fe(CN)6}3-
E){FeCl6}4-

回答 (1)

胡雪8°

2010-04-14 7:26 am

✔ 最佳答案

The answer is D.

A. [V(H2O)6]^2+
Oxidation state of V in [V(H2O)6]^2+ = +2
V : [Ar] 3d^3 4s^2
V^2+ : [Ar] 3d^3

B. [Ni(NH3)6]^3+
Oxidation state of Ni in [Ni(NH3)6]^3+ = +3
Ni : [Ar] 3d^8 4s^2
Ni^3+ : [Ar] 3d^7

C. [Co(CN)6]^3-
Oxidation state of Co in [Co(CN)6]^3- = 1x6 - 3 = +3
Co: [Ar] 3d^5 4s^2
Co^3+ : [Ar] 3d^4

D. [Fe(CN)6]^3-
Oxidation state of Fe in [Fe(CN)6]^3- = 1x6 - 3 = +3
Fe : [Ar] 3d^6 4s^2
Fe^3+ : [Ar] 3d^5

E. [FeCl6]^4-
Oxidation state of Fe in [FeCl6]^4- = 1x6 - 4 = +2
Fe : [Ar] 3d^6 4s^2
Fe^2+ : [Ar] 3d^6

參考: 胡雪八

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