What does the symbol 'I' stand for in chemistry?

The symbol 'I' in chemistry represents Iodine, which is a chemical element with the atomic number 53. Iodine is a member of the halogen group in the periodic table and is known for its distinct dark purple color in solid form and violet vapor when heated. It plays a crucial role in human health, particularly in the production of thyroid hormones, which are essential for regulating metabolism.

Iodine is also utilized in various applications, including medical disinfection, as an antiseptic in surgery, and in some nutritional supplements. Understanding that 'I' stands for Iodine is important not just in chemistry but also in biochemistry, medicine, and public health contexts.