Iodine atoms refers to individual particles of the chemical element iodine. Iodine is a type of atom that is often found in nature and used in various products such as medicine or to purify water. Full definition
The simulations determined that the central iodine atom is positively charged, even though the ion has a negative charge. (pnnl.gov)
In fact, the hormones T3 and T4 are actually named due to this mineral: the numbers 3 and 4 indicate how many iodine atoms are bonded to the hormone. (thyroidadvisor.com)
The diiodine molecule, I2, is composed of two iodine atoms joined by a covalent bond. (religion-online.org)