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Noble gases are chemically inert. Give o...

Noble gases are chemically inert. Give one reason

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Noble gases are chemically inert because of the following reasons.
(i) They have completely filled `ns^(2) np^(6)` electronic configurations in their valence shells.
(ii) They have high ionization enthalpies.
(iii) Electron gain enthalpies of noble gases are positive.
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