1.

Electronic  configuration of deuterium atom is                                                                    [J&K CET 2005]

A.                 \[1{{s}^{1}}\]
B.                 \[2{{s}^{2}}\]
C.                 \[2{{s}^{1}}\]    
D.                 \[1{{s}^{2}}\]
Answer» B.                 \[2{{s}^{2}}\]


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