Chemistry, 13.07.2019 07:40 alazhamason

Astudent explained to the class that helium has 8 valence electrons because it is in group 18. is the student correct? - the student is incorrect because helium has 2 valence electrons and it's in group 18 because the first energy level is full. - the student is correct because all elements in group 8 have a full outer energy shell. -the student is correct because all elements in group 18 have 8 valence electrons. -the student is incorrect because all noble gases have 2 valence electrons.

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