noble gases ko alug group mai kiu hai
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noble gas or zero group.
they were not reactive and light weighted gas .
it will filled in balloons.
they are
helium
neon
argon
krypton
xenon
radon
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Answer:
They are in a different group as:
1) Their valency is 0.
2) They are very stable and don't react much with other elements.
3) Their molecules are mono-atomic in nature unlike other non-metals.
Other than this, as the periodic table has been arranged in a specific manner in relation with their valency, the noble gases are in the end column with 0 valency.
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