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    Chemistry
    Grade-7
    Easy

    Question

    Noble gases are inert because

    1. They are highly reactive
    2. They are unreactive
    3. They are noble
    4. They have 8 electrons in their outermost energy level

    Hint:

    A gas can be classified as noble gas on the basis of its electronic configuration.

    The correct answer is: They have 8 electrons in their outermost energy level

      • Noble gases are inert because They have 8 electrons in their outermost energy level.
      • Noble have complete octets and are stable they do not want any electrons or want to donate any. 

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