Text: The Law of Halogen Displacement. There are five elements that make up what is known as the HALOGEN family of elements. The Halogen Law states that, "The Halogen element having the lowest atomic weight will ALWAYS DISPLACE another, within the Halogen group, whose atomic weight is greater." Element Symbol Atomic Weight Fluorine F 9 Chlorine Cl 17 Bromine Br 35 Iodine I 53 Asatine At 85

See Also:

Source: