A student 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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