write about noble gases.
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ALL NOBLE GASES OF COMPLETELY FILLED OUTERMOST SHELLS THAT IS THEY HAVE EITHER 8 ELECTRONS OR TWO ELECTRONS IN THEIR OUTERMOST SHELLS HELIUM IS THE ONLY INERT GAS HAVING DUPLET OF ELECTRONS IN ITS OUTERMOST SHELL.
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Noble gases are inert gasses.they are unreactive becausethere octet are completely filled.for example helium,neon and argon
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