Fluorine has an atomic number of 9. then n=1 energy level has two elections, and the n=2 energy level has seven electrons. fluorine’s valence is a) +2 b) -2 c) +1 d) -1

Flurione's valence is -1, so the answer is D

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Writing, you can revisit previous parts of the lesson by returning to the course map. be sure to refer to the lab’s student guide, which you can find on the first page of the lab experiment activity