The correct answer is: Their outermost energy levels are complete with 8 electrons.
Noble gases have a full valence shell, which makes them very stable and less likely to react with other elements.
Why are the noble gases the least reactive elements? (1 point)
• Their outer most energy levels are complete with & electrons.
• They are all radioactive.
• They are the last elements in each row on the periodic table.
• They have the same number of electrons as protons.
1 answer