Why are the noble gases the least reactive elements? (1 point)%0D%0AResponses%0D%0A%0D%0AThey are the elements with the smallest atomic mass. %0D%0AThey are the elements with the smallest atomic mass. %0D%0A%0D%0AThey are the most electronegative elements. %0D%0AThey are the most electronegative elements. %0D%0A%0D%0AThey have an empty inner electron shell. %0D%0AThey have an empty inner electron shell. %0D%0A%0D%0AThey have a full valence electron shell.

Answer 1

They have a full valence electron shell.

Noble gases are the least reactive elements because they possess a full valence electron shell, which gives them greater stability and makes them less likely to engage in chemical reactions.