Question

All inert gases have 8 electrons in their outermost shell.

• A. True
• B. False

Answer 1

The correct option is B False

• Inert gases are the group 18 elements of the periodic table.
• They have completely filled valence electron configuration and hence they are stable and do not take part in chemical reactions.
• Helium, neon, argon, krypton, xenon, and radon are noble gases or inert gases.
• All of them have 8 electrons in the valence shell but helium is an exception here.
• Helium has only two electrons and they are the valence shell electrons as well since there is only K shell for helium.
• Thus the given statement is false.