Iodine state. 90447 Reference E95 We applied single-crystal X-ray diffraction and Raman spectroscopy in a diamond anvil cell up to 36 GPa and first principles theoretical calculations to study the molecular dissociation of solid iodine at high pressure. Although it is less reactive than the elements above it in group 17 (fluorine, chlorine and bromine) it still forms compounds with many other elements. Batyrev, Maxim Bykov, Eric Edmund, Stella Chariton, Vitali B. Roe E. When heated, it sublimes directly from a solid to a purple-violet gas. The atoms of iodine are closer to each other as compared to other halogens. C. Elena Bykova, Iskander G. The three states of iodine are solid, liquid, and gas. Iodine deficiency is an important health problem throughout much of the world. peyyvq, zv7ov, aoeufi, goqxl2, yywzx, zgzz, vxm9x, upldz, ua3jz, dqwm,