Britannica
Sources used in this answer
Which elements belong to the halogen group?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
chemical element
The geochemical cycle.
The halogen group consists of six nonmetallic elements that occupy Group 17 of the periodic table. These elements are:
The name halogen is derived from Greek roots meaning "salt-producer," reflecting the group's tendency to form sodium salts with similar properties, such as sodium chloride. Because they possess seven valence electrons, these elements are highly reactive and act as strong oxidizers, as they seek to acquire an additional electron to achieve a stable noble gas configuration.12