Which of the following arrangements represents the correct order of electronic energy level?
CHEMISTRY
WAEC 2013
Which of the following arrangements represents the correct order of electronic energy level?
- A. 1s 2p 2s 3p 3s 3d 4s
- B. 1s 2s 2p 3s 3p 3d 4s
- C. 1s 2s 2p 3s 3p 4s 3d
- D. 1s 2s 3s 2p 3p 4s 3d
Correct Answer: C. 1s 2s 2p 3s 3p 4s 3d
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