P-Block Elements Ques 420
Question: Which one of the following configuration represents a noble gas
[CPMT 1976, 83, 89; BHU 1982; Pb. CET 2000 NCERT 1979; IIT Screening 1993; EAMCET 1993]
Options:
A) $ 1s^{2}, $ $ 2s^{2}2p^{6}, $ $ 3s^{2} $
B) $ 1s^{2}, $ $ 2s^{2}2p^{6}, $ $ 3s^{1} $
C) $ 1s^{2}, $ $ 2s^{2}2p^{6} $
D) $ 1s^{2}, $ $ 2s^{2}2p^{6}, $ $ 3s^{2}3p^{6}, $ $ 4s^{2} $
Show Answer
Answer:
Correct Answer: C
Solution:
$ 1s^{2}2s^{2}2p^{6}\to Neon $
