Iodínì

Iodine,₅₃I

Iodine
Pípè	/ˈaɪədaɪn,_ʔdɪn,_ʔdiːn/​(EYE-ə-dyn-,_--din)
Ìhànsójú	solid violet-dark gray, lustrous
Ìwúwo átọ̀mùAr, std(I)	126.90447(3)
Iodine ní orítábìlì àyè
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson Br ↑ I ↓ At tellurium←iodine→xenon
Nọ́mbà átọ̀mù(Z)	53
Ẹgbẹ́	group 17 (halogens)
Àyè	àyè 5
Àdìpọ̀	Àdìpọ̀-p
Ẹ̀ka ẹ́límẹ́ntì	Reactive nonmetal
Ìtò ẹ̀lẹ́ktrọ́nù	[Kr] 4d105s25p5
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 18, 18, 7
Àwọn ohun ìní ara
ÌfarahànatSTP	solid
Ìgbà ìyọ́	386.85K​(113.7 °C, ​236.66 °F)
Ígbà ìhó	457.4 K ​(184.3 °C, ​363.7 °F)
Kíki(nearr.t.)	4.933 g/cm3
Triple point	386.65 K, ​12.1 kPa
Critical point	819 K, 11.7 MPa
Heat of fusion	(I2) 15.52kJ/mol
Heat of	(I2) 41.57 kJ/mol
Molar heat capacity	(I2) 54.44 J/(mol·K)
pressure(rhombic) P(Pa) 1 10 100 1 k 10 k 100 k atT(K) 260 282 309 342 381 457
Atomic properties
Oxidation states	−1,+1,+3,+4,+5,+6,+7Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 2.66
Atomic radius	empirical: 140pm
Covalent radius	139±3 pm
Van der Waals radius	198 pm
Color lines in a spectral range Spectral linesof iodine
Other properties
Natural occurrence	primordial
Crystal structure	​orthorhombic
Thermal conductivity	0.449 W/(m·K)
Electrical resistivity	1.3×107Ω·m (at 0 °C)
Magnetic ordering	diamagnetic
Bulk modulus	7.7 GPa
CAS Number	7553-56-2
Mainisotopes of iodine
Iso­tope Abun­dance Half-life(t1/2) Decay mode Pro­duct 123I syn 13h ε,γ 0.16 123Te 127I 100% 127I isstablewith 74neutrons 129I trace 15.7×106y β− 0.194 129Xe 131I syn 8.02070d β−,γ 0.971 131Xe

Iodine(pípè/ˈaɪ.ɵdaɪn/EYE-o-dyne,/ˈaɪ.ɵdɨn/EYE-o-dən,tabi/ˈaɪ.ɵdiːn/EYE-o-deen;latiGíríkì:[ιώδης iodes]meaning violet (or purple), jeapilese kemikato ni ami-idamoIatinoma atomu53.