1.

The electronic configuration \[1{{s}^{2}}2{{s}^{2}}2p_{x}^{1}2p_{y}^{1}2p_{z}^{1}\] [AFMC 1997; Pb. PMT 1999; CBSE PMT 2001; AIIMS 2001]

A.                 Oxygen               
B.                 Nitrogen
C.                 Hydrogen           
D.                 Fluorine
Answer» C.                 Hydrogen           


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