Classification Of Elements And Periodicity In Properties Question 248
Question: Which of the following configurations represents atoms of the elements having the highest second ionization energy [Pb. PMT 1998]
Options:
A) $ 1s^{2}2s^{2}2p^{4} $
B) $ 1s^{2}2s^{2}2p^{6} $
C) $ 1s^{2}2s^{2}2p^{6}3s^{1} $
D) $ 1s^{2}2s^{2}2p^{6}3s^{2} $
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Answer:
Correct Answer: C
Solution:
Because removing the second electron requires taking it out from a stable configuration, which needs a large amount of energy.