Except for helium, how many electrons do noble gases have in their outer energy levels?

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2 Answers
S.S
Jan 12, 2017

#8# at GCSE and #8# at A level

Room 204
Jan 15, 2017

#8# electrons.

Explanation:

The #"octet rule"# determines the number of valence electrons in the noble gases, excluding He. Noble gases have the general electronic configuration #ns^2np^6#.

![https://www.wonderwhizkids.com/conceptmaps/Noble_gases.html](useruploads.socratic.org)

Noble gases are typically nonreactive. They do, however, have some cool applications e.g. neon lights

![http://www.learningelectronics.net/vol_3/chpt_2/3.html](useruploads.socratic.org)

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