Answer:
'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 [tex]ns^2np^6[/tex] 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.
