Question

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請問第68題要怎麼看

Ans: B
Section: 7.9
75.
Category: Medium
E 66. A ground-state chromium atom has how many unpaired electrons?
(58) 24
A) 1 B) 2 C) 4 D) 5 E) 6
IS2537355P 3843
Category: Medium Section: 7.9
Ans: E
16.
atom?
67. Which of the following is the electron configuration of an excited state of an oxygen
C
A) 1s22s22p4 B) 1s 2s²2p" C) 1822s22p%35' D) 1s22s22p E) 1s22s22p3
Category: Medium Section: 7.9
Ans: C
68. Which of the following is the electron configuration of an excited state of an iron atom?
A) [Ar]45²3d? B) [Ar]4s 3d C) [Ar]4s3d8 D) [Ar]4s'3d? E) [Ar]4s 3d
Ans: D Category: Medium Section: 7.9
7
CM 1453