Which of the following arrangements represents the correct order of electronic energy level?

By: |Published on: May 7|Categories: Chemistry WAEC| 0 comments

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: Option C

B. 1s 2s 2p 3s 3p 3d 4s

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