Atomic Structure Question 209

Question: Electronic configuration of $ {H^{-}} $ is [CPMT 1985]

Options:

A) $ 1s^{0} $

B) $ 1s^{1} $

C) $ 1s^{2} $

D) $ 1s^{1},2s^{1} $

Show Answer

Answer:

Correct Answer: C

Solution:

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



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