CBSE Class 12-science Answered
All noble gases have general electronic configuration ns^2 np^6 except helium which has 1s^2. Why?
Asked by tweetydash01 | 12 Aug, 2018, 06:11: PM
Expert Answer
Except for helium, all other noble gases have eight electrons in their outermost orbit and general electronic configuration is ns2 np6
Helium has 2 electrons in outermost orbit so the general electronic configuration is ns2.
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