1. Iodine Donia Alsaleh April 26, 2011 3 rd Period

2. Iodine Lustrous metallic gray, violet as a gas

3. Iodine ● Density (g/cc): 4.93 ● Melting Point (K): 386.7 ● Boiling Point (K): 457.5 ● Appearance: shiny, black nonmetallic solid ● Atomic Volume (cc/mol): 25.7

4. Iodine What is Iodine? Dark violet nonmetallic element, belongs to group 17 of the periodic table. Insoluble in water. Required as a trace element for living organisms. One stable isotope, I-127 exists, in addition to fourteen radioactive isotopes. Chemically the least reactive of the halogens, and the Most electropositive metallic halogen. Discovered in 1812 by Courtis

5. Iodine Iodine (I) Is number 53 on the Periodic Table.