Radon

Radon (/[unsupported input]ˈreɪdɒn/ RAY-don) iku èlemèn kimia kanthi simbul Rn lan nomer atom 86. Radon iku dat radioaktif, tanpa warna, tanpa ambu, tanpa rasa gas mulya, dumadi kanthi alamiah minangka produk paluruhan (decay) saka uranium.

Radon,  ₈₆Rn

Barkas:Radon.jpg
General properties
Pangucapan	/ˈreɪdɒn/ ​(RAY-don)
Wujud	Colorless gas
nomer massa	222 (most stable isotope)
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 astatin ← radon → fransium
Atomic number (Z)	86
Group	group 18 (noble gases)
Period	period 6
Blok	p-block
Konfigurasi èlèktron	[Xe] 4f14 5d10 6s2 6p6
Electrons per shell	2, 8, 18, 32, 18, 8
Sipat angga
Phase at STP	gas
Melting point	202.0 K ​(−71.15 °C, ​−96.07 °F)
Boiling point	211.3 K ​(−61.85 °C, ​−79.1 °F)
Density (at STP)	9.73 g/L
when liquid (at b.p.)	4.4 g/cm3
Critical point	377 K, 6.28 MPa
Heat of fusion	3.247 kJ/mol
Heat of vaporization	18.10 kJ/mol
Molar heat capacity	5R/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 states	2
Electronegativity	Pauling scale: 2.2
Covalent radius	150 pm
Van der Waals radius	220 pm
Spectral lines
Miscellanea
Crystal structure	​face-centered cubic (fcc)
Thermal conductivity	3.61 m W/(m·K)
Magnetic ordering	non-magnetic
CAS Number	10043-92-2
Main isotopes of radon
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 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
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