Question

Give reason why noble gases are placed in separate group in Modern Periodic Table

Answer 1

Noble gases are placed separately in periodic table because :
A) They have completely filled outer electronic shell configuration.
B) They are inert in nature due to above mentioned regions.
C) They all exhibit properties very different from all other elements of the periodic table as they do not make compounds ( there are exceptions tho like compounds of Xenon with oxygen and flourine ).



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Answer 2

Noble gases like He, Ne, Kr, Xe and Rn are placed in a separate group because of the following reasons:

They are extremely unreactive.

They donot combine with any other element of the periodic table.

Its that simple..

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