A) Nitrogen
B) Hydrogen
C) Chlorine
D) Helium
Correct Answer: D
Solution :
Helium is a noble gas. Noble gas is also called as inert gas. Their orbits are complete and they do not have any free electrons. Neon, Argon, Krypton Xenon are other noble gases.You need to login to perform this action.
You will be redirected in
3 sec