context: Iodine or Iodine (- purple), is a chemical element in the periodic table that has the symbol I and atomic number 53. This element is needed by almost all living things. Iodine is the lowest reactor halogen and the most electropositive. For the record, astatin should be lower in reactivity and more electropositive than iodine, but the scarcity of astatin makes it difficult to confirm this.
question: What is Iodine Atomic Number?
answers.text: 53