Keywords halogens, chlorine, bromine, iodine, preparation, chemical properties, reactions, oxidation, tests, reactivity Email us at [email protected] if you have questions about the footage and ...

When the alkali metals react with the different halogens (Group 7 of the periodic table), the group of compounds formed are known as the alkali metals halides. Due to the fact that there are a ...

The metals become more reactive as you go down the group. The elements in group 7 are known as halogens. Fluorine and chlorine are gases. Bromine is one of only two liquid elements. Iodine is solid.

It has been observed that if a wire, glass or ceramic probe which contains sodium is heated in the flame, the products of combustion of compounds which contain halogens or phosphorus increase the ...