Which of the following is not a noble gas ?
A. Hydrogen
B. Helium
C. Neon
D. Argon
Answer: Option A
Solution(By Examveda Team)
Hydrogen is not a noble gas as it has one electron in its shell and it is not stable unlike noble gases which are having 2,8,8 electrons in their outer shell.This Question Belongs to General Knowledge >> Chemistry
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