ଛାଞ୍ଚ:Infobox Krypton

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Krypton,  36Kr
Krypton discharge tube.jpg
Krypton Spectrum.jpg
Spectral lines of krypton
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକkrypton, Kr
Appearancecolorless gas, exhibiting a whitish glow in a high electric field
ଉଚ୍ଚାରଣ /ˈkrɪptɒn/ KRIP-ton
Krypton 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)
Ar

Kr

Xe
brominekryptonrubidium
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)36
ଶ୍ରେଣୀ, ବ୍ଳକgroup 18 (noble gases), p-block
ପର୍ଯ୍ୟାୟperiod 4
ମୌଳିକ ପ୍ରକାର  noble gas
ମାନକ ପରମାଣବିକ ଓଜନ (Ar)83.798
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ[Ar] 3d10 4s2 4p6
per shell
2, 8, 18, 8
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥାgas
ଗଳନାଙ୍କ115.79 K ​(-157.36 °C, ​-251.25 °F)
ସ୍ଫୁଟନାଙ୍କ119.93 K ​(-153.22 °C, ​-244.12 °F)
ଘନତା at stp (0 °C and 101.325 kPa)3.749 g/L
when liquid, at b.p.2.413[୧] g/cm3
Triple point115.775 K, ​73.2 kPa [୨]
Critical point209.41 K, 5.50 MPa
Heat of fusion1.64 kJ/mol
Heat of 9.08 kJ/mol
Molar heat capacity5R/2 = 20.786 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 59 65 74 84 99 120
Atomic properties
Oxidation states2, 1, 0
ElectronegativityPauling scale: 3.00
Covalent radius116±4 pm
Van der Waals radius202 pm
Miscellanea
Crystal structureface-centered cubic (fcc)
Cubic face-centered crystal structure for krypton
Speed of sound(gas, 23 °C) 220, (liquid) 1120 m/s
Thermal conductivity9.43×10-3  W/(m·K)
Magnetic orderingdiamagnetic[୩]
CAS Number7439-90-9
ଇତିହାସ
ଆବିଷ୍କାରWilliam Ramsay and Morris Travers (1898)
First isolationWilliam Ramsay and Morris Travers (1898)
Most stable isotopes of krypton
iso NA half-life DM DE (MeV) DP
78Kr 0.35% >1.1×1020 y β+β+ 2.846 78Se
79Kr syn 35.04 h ε - 79Br
β+ 0.604 79Br
γ 0.26, 0.39, 0.60 -
80Kr 2.25% 80Kr is stable with 44 neutrons
81Kr trace 2.29×105 y ε - 81Br
γ 0.281 -
82Kr 11.6% 82Kr is stable with 46 neutrons
83Kr 11.5% 83Kr is stable with 47 neutrons
84Kr 57.0% 84Kr is stable with 48 neutrons
85Kr syn 10.756 y β 0.687 85Rb
86Kr 17.3% 86Kr is stable with 50 neutrons
| references

References

  1. Krypton. encyclopedia.airliquide.com
  2. "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 edition ed.). Boca Raton, Florida: CRC Press. 2005.CS1 maint: Extra text (link)
  3. Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.