Jump to content

Template:Infobox radon

From Calamity Wiki
Radon, 86Rn
Template:Infobox element/symbol-to-top-image-alt
Radon
PronunciationTemplate:Infobox element/pronunciation/format
Appearancecolorless gas
Mass number[222]
Radon in the periodic table
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
Xe
↑
Rn
↓
Og
astatine ← radon → francium
Atomic number (Z)86
Groupgroup 18 (noble gases)
Periodperiod 6
Block  p-block
Electron configuration[Xe] 4f14 5d10 6s2 6p6
Electrons per shell2, 8, 18, 32, 18, 8
Physical properties
Phase at STPgas
Melting point202 K ​(−71 °C, ​−96 °F)
Boiling point211.5 K ​(−61.7 °C, ​−79.1 °F)
Density (at STP)9.73 g/L
when liquid (at b.p.)4.4 g/cm3
Critical point377 K, 6.28 MPa[1]
Heat of fusion3.247 kJ/mol
Heat of vaporization18.10 kJ/mol
Molar heat capacity5R/2 = 20.786 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 110 121 134 152 176 211
Atomic properties
Oxidation statescommon: (none)
+2,[2] +6[2]
ElectronegativityPauling scale: 2.2
Ionization energies
  • 1st: 1037 kJ/mol
Covalent radius150 pm
Van der Waals radius220 pm
Color lines in a spectral range
Spectral lines of radon
Other properties
Natural occurrencefrom decay
Crystal structure ​face-centered cubic (fcc)
(predicted)
Thermal conductivity3.61×10−3  W/(m⋅K)
Magnetic orderingnon-magnetic
CAS Number10043-92-2
History
Namingshortened from "radium emanation", since it is released as radium decays
DiscoveryErnest Rutherford and Robert B. Owens (1899)
First isolationWilliam Ramsay and Robert Whytlaw-Gray (1910)
Isotopes of radon
Main isotopes[3] Decay
Isotope abun­dance half-life (t1/2) mode pro­duct
210Rn synth 2.4 h α96% 206Po
β+4% 210At
211Rn synth 14.6 h β+72.6% 211At
α27.4% 207Po
220Rn trace 55.6 s α 216Po
222Rn trace 3.8215 d α 218Po
File:Symbol category class.svg Category: Radon
| references

Template:Infobox element/element navigation

References

  1. ↑ Template:RubberBible92nd
  2. ↑ 2.0 2.1 Rn(II) and Rn(VI) are known in RnF2 and RnO3, respectively; see Sykes, A. G. (1998). "Recent Advances in Noble-Gas Chemistry". Advances in Inorganic Chemistry. Vol. 46. Academic Press. pp. 91–93. ISBN 978-0-12-023646-6. Retrieved 2012-11-02.
  3. ↑ Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3) 030001. doi:10.1088/1674-1137/abddae.