18. When is an atom unlikely to react and form chemical bonds?

asked Oct 20, 2018 95.1k views

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when it has a complete (full) outer shell of electron .
For example helium is unreactive because it has 2 electrons in its outer ( s shell)

Stavro answered Oct 22, 2018

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An atom is unlikely to react when its highest energy level has been filled.

AndySousa answered Oct 24, 2018

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