In which one of the following is the valence electronic configuration, ns2 np3 found?

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Q: 35 (NDA-I/2008)
In which one of the following is the valence electronic configuration, ns2 np3 found?

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,10,20,7,8,10,5

keywords: 

{'ns2': [0, 0, 1, 0], 'nitrogen': [1, 1, 0, 2], 'valence': [0, 0, 1, 0], 'electronic configuration': [0, 0, 1, 0], 'carbon': [1, 0, 4, 5], 'oxygen': [3, 0, 1, 0], 'argon': [2, 0, 3, 6]}

The valence electronic configuration represents the arrangement of electrons in the outermost shell or energy level of an atom. Option 1, Carbon, has a valence electronic configuration of 2s2 2p2, which does not match the given configuration of ns2 np3. Option 2, Oxygen, has a valence electronic configuration of 2s2 2p4, which does not match the given configuration either. Option 3, Nitrogen, has a valence electronic configuration of 2s2 2p3, which matches the given configuration of ns2 np3. This means that Nitrogen is the correct answer. Option 4, Argon, has a completely filled outermost shell with a valence electronic configuration of 3s2 3p6, which also does not match the given configuration. Therefore, the correct answer is option 3, Nitrogen.