Which property is common to noble gases?

high reactivity

strong odor

brightly colored

low reactivity

'Low reactivity'  is common property of noble gases.

Explanation:

The properties of noble gases are:

They are colorless, odorless and mono atomic  gases.They are found in group number 18 of the modern periodic table.For example ; helium , xenon etc.They have completely filled electronic configuration in their valence shells which accounts for their inert nature and low reactivity.They have high ionization enthalpies.The electron gain enthalpies of noble gases are positive.

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