👉 A tetraiodide is a chemical compound consisting of three iodine atoms. It is named after the diatomic molecule, which has the formula I2. The structure of a tetraiodide is shown below: ``` I2 ``` The atomic number (Z) of an atom in a tetraiodide is 10, indicating that it contains one iodine atom. The atomic mass of an iodine atom is approximately 35.49 amu.
