At the end of this activity, students should be able to: û account for the high reactivity of the halogens û describe the trend in the reactivity with increasing atomic number of the halogens within the group û explain why chlorine is more reactive than bromine û write equations for reactions of halogens with metals and hydrogen û account for the acidic character of hydrogen halides û mention the most important properties and applications of hydrochloric acid û predict whether a molecule of a given halogen will react with a simple ion of another halogen.

Originally released by Learnetic, 2016.