ଆର୍ଗନ

ଆର୍ଗନ (English: Argon) ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Arପରମାଣୁ କ୍ରମାଙ୍କ ୧୮ । ଏହା ଏକ ନିଷ୍କ୍ରିୟ ଗ୍ୟାସପର୍ଯ୍ୟାୟ ସାରଣୀର ୧୮ତମ ସ୍ତମ୍ବରେ ଅବସ୍ଥିତ ।

Argon,  18Ar
Vial containing a violet glowing gas
Spectral lines of argon
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକargon, Ar
Appearancecolorless gas exhibiting a lilac/violet glow when placed in a high voltage electric field
ଉଚ୍ଚାରଣ/ˈɑːrɡɒn/
Argon in the periodic table
Hydrogen (other non-metal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (other non-metal)
Nitrogen (other non-metal)
Oxygen (other non-metal)
Fluorine (halogen)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (other non-metal)
Sulfur (other non-metal)
Chlorine (halogen)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (other non-metal)
Bromine (halogen)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (halogen)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanoid)
Cerium (lanthanoid)
Praseodymium (lanthanoid)
Neodymium (lanthanoid)
Promethium (lanthanoid)
Samarium (lanthanoid)
Europium (lanthanoid)
Gadolinium (lanthanoid)
Terbium (lanthanoid)
Dysprosium (lanthanoid)
Holmium (lanthanoid)
Erbium (lanthanoid)
Thulium (lanthanoid)
Ytterbium (lanthanoid)
Lutetium (lanthanoid)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (halogen)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinoid)
Thorium (actinoid)
Protactinium (actinoid)
Uranium (actinoid)
Neptunium (actinoid)
Plutonium (actinoid)
Americium (actinoid)
Curium (actinoid)
Berkelium (actinoid)
Californium (actinoid)
Einsteinium (actinoid)
Fermium (actinoid)
Mendelevium (actinoid)
Nobelium (actinoid)
Lawrencium (actinoid)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Ununtrium (unknown chemical properties)
Flerovium (unknown chemical properties)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
Ne

Ar

Kr
chlorineargonpotassium
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)18
ଶ୍ରେଣୀ, ବ୍ଳକgroup 18 (noble gases), p-block
ପର୍ଯ୍ୟାୟperiod 3
ମୌଳିକ ପ୍ରକାର  noble gas
ମାନକ ପରମାଣବିକ ଓଜନ (±) (Ar)39.948(1)
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ[Ne] 3s2 3p6
per shell
2, 8, 8
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥାgas
ଗଳନାଙ୍କ83.80 K ​(−189.35 °C, ​−308.83 °F)
ସ୍ଫୁଟନାଙ୍କ87.30 K ​(−185.85 °C, ​−302.53 °F)
ଘନତା at stp (0 °C and 101.325 kPa)1.784 g/L
when liquid, at b.p.1.40 g/cm3
Triple point83.8058 K, ​69 kPa
Critical point150.87 K, 4.898 MPa
Heat of fusion1.18 kJ/mol
Heat of 6.43 kJ/mol
Molar heat capacity5R/2 = 20.786 J/(mol·K)
 pressure
P (Pa)1101001 k10 k100 k
at T (K) 4753617187
Atomic properties
Oxidation states0
ElectronegativityPauling scale: no data
energies
(more)
Covalent radius106±10 pm
Van der Waals radius188 pm
Miscellanea
Crystal structure ​face-centered cubic (fcc)
Face-centered cubic crystal structure for argon
Speed of sound(gas, 27 °C) 323 m/s
Thermal conductivity17.72x10-3  W/(m·K)
Magnetic orderingdiamagnetic[୧]
CAS Number7440–37–1
ଇତିହାସ
ଆବିଷ୍କାରLord Rayleigh and William Ramsay (1894)
First isolationLord Rayleigh and William Ramsay (1894)
Most stable isotopes of argon
isoNAhalf-lifeDMDE (MeV)DP
36Ar0.337%36Ar is stable with 18 neutrons
37Arsyn35 dε0.81337Cl
38Ar0.063%38Ar is stable with 20 neutrons
39Artrace269 yβ0.56539K
40Ar99.600%40Ar is stable with 22 neutrons
41Arsyn109.34 minβ2.4941K
42Arsyn32.9 yβ0.60042K
| references

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ଆଧାର

ଆହୁରି ପଢନ୍ତୁ

  • Emsley, J., Nature's Building Blocks; Oxford University Press: Oxford, NY, 2001; pp. 35–39.
  • Brown, T. L.; Bursten, B. E.; LeMay, H. E., In Chemistry: The Central Science, 10th ed.; Challice, J.; .; Folchetti, N. et al.; Eds.; Pearson Education, Inc.: Upper Saddle River, NJ, 2006; pp. 276 and 289.
  • Triple point temperature: 83.8058 K – Preston-Thomas, H. (1990). "The International Temperature Scale of 1990 (ITS-90)". Metrologia. 27: 3–10. Bibcode:1990Metro..27....3P. doi:10.1088/0026-1394/27/1/002.
  • Triple point pressure: 69 kPa – "Section 4, Properties of the Elements and Inorganic Compounds; Melting, boiling, triple, and critical temperatures of the elements". CRC Handbook of Chemistry and Physics (85th ed.). Boca Raton, Florida: CRC Press. 2005.

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