Answer :
The given statement is true.
Explanation:
- Noble gas elements are present in the group 8th of the periodic table.
- Noble gases are -He(helium), Ne(neon), Ar(argon), Kr(krypton, Xe(xenon), and Rn(radon).
- The noble gas is stable because their outermost(valence) electron shell of electrons is full.
- These elements are the least reactive.
- Less reactivity of the noble gases is because they did not need to gain or lose electrons to complete their outermost shell.