👉 Iodine, a chemical element with symbol I and atomic number 12, is one of the most abundant elements in Earth's crust. It has a high melting point (1064.5°C) and low boiling point (-39.8°C), making it highly reactive and toxic. When iodine reacts with water or other organic compounds, it can form various compounds that are used in many industries such as agriculture, electronics, and pharmaceuticals. Some of these compounds include