The correct response is:
Their outermost energy levels are complete with 8 electrons.
This complete outer shell makes noble gases stable and generally unreactive, as they do not need to gain, lose, or share electrons to achieve stability.
Why are the noble gases the least reactive elements?(1 point)
Responses
They are the last elements in each row on the periodic table.
They are the last elements in each row on the periodic table.
They have the same number of electrons as protons.
They have the same number of electrons as protons.
Their outer most energy levels are complete with 8 electrons.
Their outer most energy levels are complete with 8 electrons.
They are all radioactive.
1 answer