Classification Of Elements And Periodicity In Properties Ques 121
Question: The electronic configuration of halogen is [MP PET/PMT 1998; Pb. PMT 2001]
Options:
A) $ ns^{2}np^{6} $
B) $ ns^{2}np^{3} $
C) $ ns^{2}np^{5} $
D) $ ns^{2} $
Show Answer
Answer:
Correct Answer: C
Solution:
Halogens has 7 electrons in his valance shell $ (ns^{2}np^{5}) $ .
