A) \[1{{s}^{0}}\]
B) \[1{{s}^{1}}\]
C) \[1{{s}^{2}}\]
D) \[1{{s}^{1}}\,2{{s}^{1}}\]
Correct Answer: C
Solution :
Electronic configuration of \[{{H}^{-}}\] is \[1{{s}^{2}}\]. It has 2 electrons in extra nuclear space.
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