A. Chlorine
B. Nitrogen
C. Calcium
D. Neon
Correct Answer:
Option B – Nitrogen
Explanation
Nitrogen has an electronic configuration of 7 i.e 1s² 2ps² 2p³. option A, C, D are Chlorine 17, Calcium 20, Neon 10
![Which of the following elements has the electronic configuration:1s² 2s² 2p6 3s² 3p¹? [11Na, 13Al, 14N,16S]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "Which of the following elements has the electronic configuration:1s² 2s² 2p6 3s² 3p¹? [11Na, 13Al, 14N,16S]")
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