How many valence electrons are in noble gases?
Understand the Problem
The question is asking for the number of valence electrons found in noble gases, which are elements in Group 18 of the periodic table known for their stability and complete electron shells.
Answer
8 valence electrons, except helium which has 2.
Except for helium, all noble gases have 8 valence electrons.
Answer for screen readers
Except for helium, all noble gases have 8 valence electrons.
More Information
Helium is an exception among noble gases as it has 2 valence electrons, while others have 8, making them chemically inert.
Tips
It is a common mistake to assume all noble gases have the same number of valence electrons without accounting for helium.
Sources
- How many valence electrons does each noble gas have? - Vaia - vaia.com
- Noble gas - Wikipedia - en.wikipedia.org
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