ର‍୍ୟାଡ଼ନ

(Radonରୁ ଲେଉଟି ଆସିଛି)

ର‍୍ୟାଡ଼ନ ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Rnପରମାଣୁ କ୍ରମାଙ୍କ ୮୬ ।

Radon,  86Rn
A small gold tube filled with radon gas, causing radioluminescence of the phosphor layer below
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକradon, Rn
Appearancecolorless gas
ଉଚ୍ଚାରଣ/ˈrdɒn/ RAY-don
Radon 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)
Xe

Rn

Uuo
astatineradonfrancium
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)86
ଶ୍ରେଣୀ, ବ୍ଳକgroup 18 (noble gases), p-block
ପର୍ଯ୍ୟାୟperiod 6
ମୌଳିକ ପ୍ରକାର  noble gas
ମାନକ ପରମାଣବିକ ଓଜନ (Ar)(222)
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ[Xe] 4f14 5d10 6s2 6p6
per shell
2, 8, 18, 32, 18, 8
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥାgas
ଗଳନାଙ୍କ202.0 K ​(−71.15 °C, ​−96.07 °F)
ସ୍ଫୁଟନାଙ୍କ211.3 K ​(−61.85 °C, ​−79.1 °F)
ଘନତା at stp (0 °C and 101.325 kPa)9.73 g/L
when liquid, at b.p.4.4 g/cm3
Critical point377 K, 6.28 MPa
Heat of fusion3.247 kJ/mol
Heat of 18.10 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) 110 121 134 152 176 211
Atomic properties
Oxidation states6, 2, 0
ElectronegativityPauling scale: 2.2
Covalent radius150 pm
Van der Waals radius220 pm
Miscellanea
Crystal structureface-centered cubic (fcc)
Face-centered cubic crystal structure for radon
Thermal conductivity3.61 m W/(m·K)
Magnetic orderingnon-magnetic
CAS Number10043-92-2
ଇତିହାସ
ଆବିଷ୍କାରFriedrich Ernst Dorn (1898)
First isolationWilliam Ramsay and Robert Whytlaw-Gray (1910)
Most stable isotopes of radon
iso NA half-life DM DE (MeV) DP
210Rn syn 2.4 h α 6.404 206Po
211Rn syn 14.6 h ε 2.892 211At
α 5.965 207Po
222Rn trace 3.8235 d α 5.590 218Po
224Rn syn 1.8 h β 0.8 224Fr
| references

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