Multiple choice

Which of the following inert gas, which has eight electrons in their outer most shells?

  1. Neon

  2. Argon

  3. Krypton

  4. All of the above.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Neon, Argon, and Krypton are all noble gases, and they all possess a stable octet (eight electrons) in their outermost shell. Therefore, all of the listed options are correct.