Total number of halogen elements found in the periodic table is A. 3 B. 5 C. 8 D. 13

The correct answer is C. There are 8 halogen elements in the periodic table. They are fluorine (F), chlorine (Cl), bromine (Br),

iodine (I), astatine (At), and the radioactive ununseptium (Uus). Halogens are highly reactive elements that are found in Group 17 of the periodic table. They are all non-metals and have a strong tendency to form bonds with other elements. Fluorine is the most reactive element in the periodic table, followed by chlorine, bromine, and iodine. Astatine is the rarest element in the periodic table, and ununseptium has not yet been observed in nature.

Option A is incorrect because there are 8 halogen elements, not 3.

Option B is incorrect because there are 8 halogen elements, not 5.

Option D is incorrect because there are 8 halogen elements, not 13.