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.
They are all radioactive.
They are all radioactive.
Their outer most energy levels are complete with 8 electrons.
Their outer most energy levels are complete with 8 electrons.
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The correct response is:
Their outer most energy levels are complete with 8 electrons.
This full valence shell configuration makes noble gases stable and less likely to participate in chemical reactions, which is why they are considered the least reactive elements.
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