Answers

  • Brainly User
2016-03-13T19:14:30+05:30
Inert literally means "NONREACTIVE"!

Helium has reached the least stable configuration.
That is,It has finished its duplet!(That is,Helium has 2 electron in the valence shell or the last shell)
Those elements who have finished their octects or duplets cannot take part in any reaction as they are highly nonreactive.

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