Question

select the correct answer. bromine (br) belongs to the halogen family. based on the location of the halogens, how many valence electrons does bromine have?
a. 2
b. 3
c. 6
d. 7
e. 8

Explanation:

Halogens are in Group 17 of the periodic table. The number of valence electrons for main - group elements is equal to their group number (for Group 1 - 2 and 13 - 18). Group 17 elements have 7 valence electrons. Bromine (Br) is a halogen, so it has 7 valence electrons.

Answer:

D. 7