which element has a complete valence electron shell?\nselenium (se)\noxygen (o)\nfluorine (f)\nargon (ar)
which element has a complete valence electron shell?\nselenium (se)\noxygen (o)\nfluorine (f)\nargon (ar)
Answer
Brief Explanation:
Noble gases have a complete valence - electron shell. Argon is a noble gas with 8 valence electrons. Fluorine has 7 valence electrons, oxygen has 6 valence electrons, and selenium has 6 valence electrons.
Answer:
argon (Ar)