Electronic configuration of $H^{-}$ is

$1 s^{0}$

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$1 s^{1}$

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$1 s^{2}$

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$1 s^{1} 2 s^{1}$

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Solution

The correct option is C
$1 s^{2}$

Electronic configuration of $H^{-}$ is $1 s^{2}$ . It has 2 electrons in extra nuclear space.

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