Question

Which ONE statement is true about bromine atoms in molecules?

Bromine atoms usually end up with 1 valence electron.
Bromine atoms usually end up with 2 valence electrons.
Bromine atoms usually end up with 3 valence electrons.
Bromine atoms usually end up with 4 valence electrons.
Bromine atoms usually end up with 5 valence electrons.
Bromine atoms usually end up with 6 valence electrons.
Bromine atoms usually end up with 7 valence electrons.
Bromine atoms usually end up with 8 valence electrons.

Answer 1

I believe the correct answer from the choices listed above is the 7th option. Bromine atoms usually end up with 7 valence electrons. Bromine has an electron configuration of 1s22s22p63s23p64s23d104p5 the valence electrons are in the 4s and 4p orbitals which gives 7 electrons.