Answer:
Halogens
Explanation:
All the elements in Group 17 on the periodic table are classified as halogens. The members of this group are:
- Fluorine
- Chlorine
- Bromine
- Iodine
- Astatine
They are also known as the group VIIA
Their general outer energy level structure is ns² np⁵
- The first four members of the group are common. Fluorine is the most reactive non-metal and iodine is less reactive.
- Due to lack of one electron to complete their outermost shell, they are good oxidizing agents and are univalent.
