Properties of Halogens and Gradation Down the Group

Physical Properties of Halogens and Gradation Down the Group:

There is a gradual gradation in the physical properties of halogens down the group. At room temperatureIf something is at room temperature, its temperature is neither hot nor cold. It is a range of air temperatures that most people prefer for indoor settings, usually considered to be... More, fluorine and chlorine are gases, bromine is a liquid and iodine and astatine are solids. Astatine is radioactive.