Which of the following inert gases have 2 electrons in the outermost shell?

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Solution

The correct option is B He
Helium (He) is the inert gas that has 2 electrons in the outermost shell. Neon (Ne), Argon (Ar), and Krypton (Kr) are also inert gases but they have 8 electron in their outermost shell.

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Similar questions

All inert gases have 8 electrons in their outermost shell.

(a) How many electrons do inert gases have in their valence shells?

(b) Name an element of group 18 which can form compounds.

Inert gases have ______________electrons in their outermost shell.

8

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