Atomic Structure Question 307
Question: The outer electronic structure $ 3s^{2}3p^{5} $ is possessed by [Pb. PMT 2002; Pb. CET 2001]
Options:
A) Cl
B) O
C) Ar
D) Br
Show Answer
Answer:
Correct Answer: A
Solution:
The atomic number of chlorine is 17 its configuration is $ 1s^{2}2s^{2}2p^{6}3s^{2}3p^{5} $