Therefore, we chose those colors to represent SAAC. However, each type of cancer has its own color, and these are listed below:
Reaction of iron with the halogens. Iron reacts with excess of the halogens F2, Cl2, and Br2, to form ferric, that is, Fe(III), halides. This reaction is not very successful for iodine because of thermodynamic problems. The iron(III) is too oxidizing and the iodide is too reducing.
First electron affinity and reactivity The reactivity of the elements in group 7 falls as you go down the group-fluorine is the most reactive and iodine the least. Often in their reactions these elements form their negative ions.