why insert gases are accommodated in same column ??
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The columns, or groups, in the periodic table are used to determine the number of valence electrons for each element. The noble/ inert gases are chemically stable and have a full valence level of electrons. Other elements react in order to achieve the same stability as the noble gases.
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Answer:
Valencies of all inert gases is same i.e. 0
Therefore all inert gases are in same group
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