Chemistry, 04.02.2020 13:00 avadestinyy
Which element has a complete valence electron shell? selenium (se) oxygen (o) fluorine (f) argon (ar)
Answers: 3
![[Ar]3d^{10}4s^{2}4p^4](/tpl/images/0500/4890/41cd2.png)
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Which element has a complete valence electron shell? selenium (se) oxygen (o) fluorine (f) argon (a...
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