Radon

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Radon,  86Rn
Gambar:Radon.jpg
General properties
Pangucapan/ˈrdɒn/ (RAY-don)
WujudColorless gas
nomer massa222 (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

Uuo
astatineradonfrancium
Atomic number (Z)86
Groupgroup 18 (noble gases)
Periodperiod 6
Blokp-block
Konfigurasi èlèktron[Xe] 4f14 5d10 6s2 6p6
Electrons per shell
2, 8, 18, 32, 18, 8
Sipat angga
Phase at STPgas
Melting point202.0 K ​(−71.15 °C, ​−96.07 °F)
Boiling point211.3 K ​(−61.85 °C, ​−79.1 °F)
Density (at STP)9.73 g/L
when liquid (at b.p.)4.4 g/cm3
Critical point377 K, 6.28 MPa
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 states2
ElectronegativityPauling scale: 2.2
Covalent radius150 pm
Van der Waals radius220 pm
Color lines in a spectral range
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
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
| references | in Wikidata

Radon (/[unsupported input]ˈrdɒn/ 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.

Pranala njaba[besut | besut sumber]

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