1.

why group 18 elements are called noble gases? Name the noble gases? Give the two uses of noble gases.​

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Answer:

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Answer...

the elements of group 18 are known as noble GASES because their valence SHELL orbitals are completely filled and therefore they REACT with only few elements under special conditions .

Due to completely filled orbitals they are very less reactive as they do not NEED to gain or lose electrons.

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