ୟୁରାନିଅମ

ୟୁରାନିଅମ ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ U ଓ ପରମାଣୁ କ୍ରମାଙ୍କ ୯୨ ।

Uranium,  ₉₂U

ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକ	uranium, U
Appearance	silvery gray metallic; corrodes to a spalling black oxide coat in air
ଉଚ୍ଚାରଣ	/jʊˈreɪniəm/ ew-RAY-nee-əm
Uranium in the periodic table
Nd ↑ U ↓ (Uqq) protactinium ← uranium → neptunium
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)	92
ଶ୍ରେଣୀ, ବ୍ଳକ	group n/a, f-block
ପର୍ଯ୍ୟାୟ	period 7
ମୌଳିକ ପ୍ରକାର	actinide
ମାନକ ପରମାଣବିକ ଓଜନ (±) (Ar)	238.02891(3)
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ	[Rn] 5f3 6d1 7s2
per shell	2, 8, 18, 32, 21, 9, 2
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥା	solid
ଗଳନାଙ୍କ	1405.3 K ​(1132.2 °C, ​2070 °F)
ସ୍ଫୁଟନାଙ୍କ	4404 K ​(4131 °C, ​7468 °F)
Density near r.t.	19.1 g/cm3
when liquid, at m.p.	17.3 g/cm3
Heat of fusion	9.14 kJ/mol
Heat of	417.1 kJ/mol
Molar heat capacity	27.665 J/(mol·K)
pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 2325 2564 2859 3234 3727 4402
Atomic properties
Oxidation states	6, 5, 4, 3[1], 2, 1 (weakly basic oxide)
Electronegativity	Pauling scale: 1.38
Atomic radius	empirical: 156 pm
Covalent radius	196±7 pm
Van der Waals radius	186 pm
Miscellanea
Crystal structure	​orthorhombic
Speed of sound thin rod	3155 m/s (at 20 °C)
Thermal expansion	13.9 µm/(m·K) (at 25 °C)
Thermal conductivity	27.5 W/(m·K)
Electrical resistivity	0.280 µ Ω·m (at 0 °C)
Magnetic ordering	paramagnetic
Young's modulus	208 GPa
Shear modulus	111 GPa
Bulk modulus	100 GPa
Poisson ratio	0.23
CAS Number	7440-61-1
ଇତିହାସ
ଆବିଷ୍କାର	Martin Heinrich Klaproth (1789)
First isolation	Eugène-Melchior Péligot (1841)
Most stable isotopes of uranium
iso NA half-life DM DE (MeV) DP 232U trace 68.9 y SF - — α 5.414 228Th 233U trace 1.592×105 y SF 197.93[2] — α 4.909 229Th 234U 0.005% 2.455×105 y SF 197.78 — α 4.859 230Th 235U 0.720% 7.04×108 y SF 202.48 — α 4.679 231Th 236U trace 2.342×107 y SF 201.82 — α 4.572 232Th 238U 99.274% 4.468×109 y α 4.270 234Th SF 205.87 — β−β− - 238Pu
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ବ୍ୟବହାର

ଆହୁରି ଦେଖନ୍ତୁ

ଟୀକା

1. Morss, L.R.; Edelstein, N.M. and Fuger, J., ed. (2006). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Netherlands: Springer. ISBN 9048131464.{{cite book}}: CS1 maint: multiple names: editors list (link)
2. Magurno, B.A. ; Pearlstein, S, ed. (1981). Proceedings of the conference on nuclear data evaluation methods and procedures. BNL-NCS 51363, vol. II. Upton, NY (USA): Brookhaven National Lab. pp. 835 ff.{{cite book}}: CS1 maint: multiple names: editors list (link)

ଆଧାର

Full reference information for multi-page works cited

• Emsley, John (2001). "Uranium". Nature's Building Blocks: An A to Z Guide to the Elements. Oxford: Oxford University Press. pp. 476–482. ISBN 0-19-850340-7. {{cite book}}: Invalid |ref=harv (help)
• Seaborg, Glenn T. (1968). "Uranium". The Encyclopedia of the Chemical Elements. Skokie, Illinois: Reinhold Book Corporation. pp. 773–786. LCCCN 68-29938. {{cite book}}: Invalid |ref=harv (help)

ବାହାର ଲିଙ୍କ

• Uranium Resources and Nuclear Energy Archived 2013-05-06 at the Wayback Machine.
• U.S. EPA: Radiation Information for Uranium
• "What is Uranium?" from World Nuclear Association Archived 2013-02-24 at the Wayback Machine.
• Nuclear fuel data and analysis from the U.S. Energy Information Administration
• Current market price of uranium
• World Uranium deposit maps
• Annotated bibliography for uranium from the Alsos Digital Library Archived 2005-12-14 at the Wayback Machine.
• NLM Hazardous Substances Databank—Uranium, Radioactive
• Mining Uranium at Namibia's Langer Heinrich Mine Archived 2014-02-21 at the Wayback Machine.
• World Nuclear News
• ATSDR Case Studies in Environmental Medicine: Uranium Toxicity U.S. Department of Health and Human Services
• Real Time Uranium Prices
• Uranium at The Periodic Table of Videos (University of Nottingham)