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.