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Y 18th group elements are called …

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Y 18th group elements are called mono-atomic gases

    • Posted by Lavanya Skelly 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Abhiyank Rajouria 6 years, 5 months ago

    Noble gases are monoatomic because they have complete octet (apart from Helium, which has duet) , hence they are highly stable on their own and do not react with others to form compounds in standard temperature and pressure conditions.

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