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

2 Answers
Jan 12, 2017

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

Jan 15, 2017

Answer:

#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

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