All of these have 7 electrons in their outermost energy levels except Cl, I, H, Br, F?
Answer:
H
Hydrogen is in group 1. It has 1 valence electron
F, Cl, Br, I are all halogens, group 7, they have 7 valence (outermost) electrons
Hydrogen. It only has one electron period.
hydrogen. it has one valence electron
The answers post by the user, for information only, FunQA.com does not guarantee the right.
More Questions and Answers: