Element Properties:53-59 atomic number
CESIUM, IODINE, BARIUM, LANTHANUM, CERIUM, PRASEODYMIUM IODINE Atomic symbol: I Atomic weight: 126.90447 Atomic number: 53 Electron configuration: 2-8-18-18-7 Oxidation states: ±1, +5, 7 State of matter: solid Non-metal Discovered in 1811 by Bernard Courtois Boils at 184°C, melts at 113.5°C Notes: Iodine is bluish-black in color with a metallic luster, characteristic odor, and sharp […]