Classification Of Elements And Periodicity In Properties Ques 236
Question: A neutral atom will have the lowest ionization potential when its electronic configuration is [NCERT 1978; CBSE PMT 1991]
Options:
A) $ 1s^{1} $
B) $ 1s^{2},2s^{2}p^{6} $
C) $ 1s^{2},2s^{2}p^{2} $
D) $ 1s^{2},2s^{2}p^{6},3s^{1} $
Show Answer
Answer:
Correct Answer: D
Solution:
Ionization potential is least for alkali metals and it decreases down the group.
