has role halogen iodine atom J I WebElements:I 126.90447 yodo iodine chebi_ontology iode Chemical element with atomic number 53. 53I 126.90447 ZCYVEMRRCGMTRW-UHFFFAOYSA-N [I] Iod I 0 CHEBI:24859 Jod InChI=1S/I iodine iodium micronutrient human metabolite