There are 6 Elements in the Halogen section of the Periodic Table.
- Element 7 (Fluorine)
- Element 17 (Chlorine)
- Element 35 (Bromine)
- Element 53 (Iodine)
- Element 85 (Astatine)
- Element 117 (Tennessine)
There is no one "atom" of halogen.