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.

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.

ipwnbunnies · Answer

For most main group elements, you can predict how many valence electrons they have by their main-group group number.
Bromine is in group 7A, therefore it has 7 valence electrons.