1.

The electronic configuration of an element with atomic number 7  i.e. nitrogen atom is  [CPMT 1982, 84, 87]

A.                 \[1{{s}^{2}},2{{s}^{1}},2p_{x}^{3}\]         
B.                 \[1{{s}^{2}},2{{s}^{2}}2p_{x}^{2}2p_{y}^{1}\]
C.                 \[1{{s}^{2}},2{{s}^{2}}2p_{x}^{1}2p_{y}^{1}2p_{z}^{1}\]               
D.                 \[1{{s}^{2}},2{{s}^{2}}2p_{x}^{1}2p_{y}^{2}\]
Answer» D.                 \[1{{s}^{2}},2{{s}^{2}}2p_{x}^{1}2p_{y}^{2}\]


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