The reason noble gases are the least reactive elements is their outermost energy levels are complete with 8 electrons. This full valence shell configuration makes them stable and generally unreactive, as they do not readily gain or lose electrons.
Why are the noble gases the least reactive elements?(1 point)
Responses
They have the same number of electrons as protons.
They have the same number of electrons as protons.
They are all radioactive.
They are all radioactive.
They are the last elements in each row on the periodic table.
They are the last elements in each row on the periodic table.
Their outer most energy levels are complete with 8 electrons.
1 answer