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  1. In which one of the following is the valence electronic configuration, ns2np3found ?
    1. Carbon
    2. Oxygen
    3. Nitrogen
    4. Argon
Correct Option: C

Nitrogen (Z = 7) has the electronic configuration 1 s2 2s2 2px 1 2py 1 2pz 1 (i.e. ns2 np3)


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