Chemistry-
General
Easy
Question
Which of the following electronic configurations is not possible?
- 1s2,2s2
- 1s2,2s2,2p6
- 3d10,4s2,4p2
- 1s2,2s2,2p2,3s1
The correct answer is: 1s2,2s2,2p2,3s1
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