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.
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.
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