Helium is the noble gas with only 2 valence electrons
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All noble gases have 8 valence electrons. Helium has only 2.
Each noble gas has 8 valence electrons, except for helium which has 2 valence electrons. This full outer electron shell gives noble gases their stability and lack of reactivity.
Yes, all noble gases have eight valence electrons, except for helium which has only two valence electrons. This stable electron configuration is known as the octet rule.
There are 8 electrons present in the valence level for all noble gases except helium. This is because in the outermost shell, known as the valence shell, noble gases (excluding helium) have a full octet of electrons, making them stable and unreactive.
Helium has only 2 valence electrons. The rest noble gases have eight.