select the correct answer.\nthe periodic table houses noble gas elements in group 18. these elements are…

select the correct answer.\nthe periodic table houses noble gas elements in group 18. these elements are highly stable and rarely react with any other elements. what is one possible reason for the stability of the noble gas elements?\na. they easily form covalent bonds.\nb. the compounds that they form with other elements are very unstable.\nc. their outermost shell has the maximum number of electrons that it can hold.\nd. they require less activation energy.
Answer
Brief Explanations:
Noble gases are stable because their outermost electron - shell (valence shell) is full, having the maximum number of electrons it can hold. This makes them less likely to gain, lose, or share electrons and thus less reactive. Option A is incorrect as they don't easily form covalent bonds. Option B is wrong since they rarely form compounds at all. Option D is not the reason for their stability; rather, their stability is related to electron - shell configuration.
Answer:
C. Their outermost shell has the maximum number of electrons that it can hold.