Question

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Answer 1

Answer:

Noble gases have 8 electrons in their outermost shell. therefore they follow the octet rule and hence they are stable i.e. they do not need to gain or loose electrons in order to become stable. hence they do not combine with other elements to form molecules.

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Answer 2

Explanation:

The full valence electron shells of these atoms make noble gases extremely stable and a likely to form chemical because they have a very negligible tendency to lose or gain electron.

However there are some exception like Xenon because it forms compound.

As it is the heaviest non radioactive noble gas.

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