ଆୟୋଡ଼ିନ

ଆୟୋଡ଼ିନ ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ I ଓ ପରମାଣୁ କ୍ରମାଙ୍କ ୫୩ ।

Iodine,  ₅₃I

ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକ	iodine, I
Appearance	lustrous metallic gray, violet as a gas
ଉଚ୍ଚାରଣ	/ˈaɪ.ədaɪn/ EYE-ə-dyn, /ˈaɪ.ədn/ EYE-ə-dən, or /ˈaɪ.ədiːn/ EYE-ə-deen
Iodine in the periodic table
Br ↑ I ↓ At tellurium ← iodine → xenon
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)	53
ଶ୍ରେଣୀ, ବ୍ଳକ	group 17 (halogens), p-block
ପର୍ଯ୍ୟାୟ	period 5
ମୌଳିକ ପ୍ରକାର	halogen
ମାନକ ପରମାଣବିକ ଓଜନ (Ar)	126.90447
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ	[Kr] 4d10 5s2 5p5
per shell	2, 8, 18, 18, 7
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥା	solid
ଗଳନାଙ୍କ	386.85 K ​(113.7 °C, ​236.66 °F)
ସ୍ଫୁଟନାଙ୍କ	457.4 K ​(184.3 °C, ​363.7 °F)
Density near r.t.	4.933 g/cm3
Triple point	386.65 K, ​12.1 kPa
Critical point	819 K, 11.7 MPa
Heat of fusion	(I2) 15.52 kJ/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 at T (K) 260 282 309 342 381 457
Atomic properties
Oxidation states	7, 5, 3, 1, -1 (strongly acidic oxide)
Electronegativity	Pauling scale: 2.66
Atomic radius	empirical: 140 pm
Covalent radius	139±3 pm
Van der Waals radius	198 pm
Miscellanea
Crystal structure	​orthorhombic
Thermal conductivity	0.449 W/(m·K)
Electrical resistivity	1.3×107 Ω·m (at 0 °C)
Magnetic ordering	diamagnetic
Bulk modulus	7.7 GPa
CAS Number	7553-56-2
ଇତିହାସ
ଆବିଷ୍କାର	Bernard Courtois (1811)
First isolation	Bernard Courtois (1811)
Most stable isotopes of iodine
iso NA half-life DM DE (MeV) DP 123I syn 13 h ε, γ 0.16 123Te 124I syn 4.176 d ε - 124Te 125I syn 59.40 d ε - 125Te 127I 100% 127I is stable with 74 neutrons 129I trace 1.57×107 y β− 0.194 129Xe 131I syn 8.02070 d β−, γ 0.971 131Xe 135I syn 6.57 h β− - 135Xe

ବାହାର ଲିଙ୍କ

• Iodine at The Periodic Table of Videos (University of Nottingham)
• "Micronutrient Research for Optimum Health", Linus Pauling Institute, OSU Oregon State University
• ATSDR – CSEM: Radiation Exposure from Iodine 131 U.S. Department of Health and Human Services (public domain)
• ChemicalElements.com – Iodine
• who.int, WHO Global Database on Iodine Deficiency
• Oxidizing Agents > Iodine
• Seaweed. A chemical industry in Brittany, in the past and today.