Why are the noble gases the least reactive elements?(1 point)%0D%0AResponses%0D%0A%0D%0AThey are the last elements in each row on the periodic table.%0D%0AThey are the last elements in each row on the periodic table.%0D%0A%0D%0ATheir outer most energy levels are complete with 8 electrons.%0D%0ATheir outer most energy levels are complete with 8 electrons.%0D%0A%0D%0AThey have the same number of electrons as protons.%0D%0AThey have the same number of electrons as protons.%0D%0A%0D%0AThey are all radioactive.

1 answer

The correct response is:

Their outer most energy levels are complete with 8 electrons.

This complete outer energy level makes noble gases very stable and not inclined to react with other elements, as they do not need to gain, lose, or share electrons to achieve stability.