Answer :
Answer:
flourine 19F-
Explanation:
because we have 1 extra electron so the charge should be negative, then check the number of protons to know the atomic number, and 9 is flourine
Answer:
flourine 19F-
Explanation:
because we have 1 extra electron so the charge should be negative, then check the number of protons to know the atomic number, and 9 is flourine