Question

select the correct answer. which of these elements is a halogen? a. potassium (k) b. calcium (ca) c. vanadium (v) d. gallium (ga) e. bromine (br)

Explanation:

Halogens are the elements in group 17 of the periodic table. Bromine is in group 17. Potassium is an alkali - metal (group 1), calcium is an alkaline - earth metal (group 2), vanadium is a transition metal (group 5), and gallium is a post - transition metal (group 13).

Answer:

E. bromine (Br)