Sponsored by the Institute of Physics   Constants   Equations   Periodic Table Atomic No. Order: Select an Element1 - Hydrogen2 - Helium3 - Lithium4 - Beryllium5 - Boron6 - Carbon7 - Nitrogen8 - Oxygen9 - Fluorine10 - Neon11 - Sodium12 - Magnesium13 - Aluminium14 - Silicon15 - Phosphorous16 - Sulphur17 - Chlorine18 - Argon19 - Potassium20 - Calcium21 - Scandium22 - Titanium23 - Vanadium24 - Chromium25 - Manganese26 - Iron27 - Cobalt28 - Nickel29 - Copper30 - Zinc31 - Gallium32 - Germanium33 - Arsenic34 - Selenium35 - Bromine36 - Krypton37 - Rubidium38 - Strontium39 - Yttrium40 - Zirconium41 - Niobium42 - Molybdenum43 - Technetium44 - Ruthenium45 - Rhodium46 - Palladium47 - Silver48 - Cadmium49 - Indium50 - Tin51 - Antimony52 - Tellurium53 - Iodine54 - Xenon55 - Caesium56 - Barium57 - Lanthanum58 - Cerium59 - Praseodymium60 - Neodymium61 - Promethium62 - Samarium63 - Europium64 - Gadolinium65 - Terbium66 - Dysprosium67 - Holmium68 - Erbium69 - Thulium70 - Ytterbium71 - Lutetium72 - Hafnium73 - Tantalum74 - Tungsten75 - Rhenium76 - Osmium77 - Iridium78 - Platinum79 - Gold80 - Mercury81 - Thallium82 - Lead83 - Bismuth84 - Polonium85 - Astatine86 - Radon87 - Francium88 - Radium89 - Actinium90 - Thorium91 - Protactinium92 - Uranium93 - Neptunium94 - Plutonium95 - Americium96 - Curium97 - Berkelium98 - Californium99 - Einsteinium100 - Fermium101 - Mendelevium102 - Nobelium103 - Lawrencium104 - Rutherfordium105 - Dubnium106 - Seaborgium107 - Bohrium108 - Hassium109 - Meitnerium110 - 111 - 112 - Alphabetic Order: Select an Element89 - Actinium13 - Aluminium95 - Americium51 - Antimony18 - Argon33 - Arsenic85 - Astatine56 - Barium97 - Berkelium4 - Beryllium83 - Bismuth107- Bohrium5 - Boron35 - Bromine48 - Cadmium55 - Caesium20 - Calcium98 - Californium6 - Carbon58 - Cerium17 - Chlorine24 - Chromium27 - Cobalt29 - Copper96 - Curium105- Dubnium66 - Dysprosium99 - Einsteinium68 - Erbium63 - Europium100- Fermium9 - Fluorine87 - Francium64 - Gadolinium31 - Gallium32 - Germanium79 - Gold72 - Hafnium108- Hassium2 - Helium67 - Holmium1 - Hydrogen49 - Indium53 - Iodine77 - Iridium26 - Iron36 - Krypton57 - Lanthanum103- Lawrencium82 - Lead3 - Lithium71 - Lutetium12 - Magnesium25 - Manganese109- Meitnerium101- Mendelevium80 - Mercury42 - Molybdenum60 - Neodymium10 - Neon93 - Neptunium28 - Nickel41 - Niobium7 - Nitrogen102- Nobelium76 - Osmium8 - Oxygen46 - Palladium15 - Phosphorous78 - Platinum94 - Plutonium84 - Polonium19 - Potassium59 - Praseodymium61 - Promethium91 - Protactinium88 - Radium86 - Radon75 - Rhenium45 - Rhodium37 - Rubidium44 - Ruthenium104- Rutherfordium62 - Samarium21 - Scandium106- Seaborgium34 - Selenium14 - Silicon47 - Silver11 - Sodium38 - Strontium16 - Sulphur73 - Tantalum43 - Technetium52 - Tellurium65 - Terbium81 - Thallium90 - Thorium69 - Thulium50 - Tin22 - Titanium74 - Tungsten92 - Uranium23 - Vanadium54 - Xenon70 - Ytterbium39 - Yttrium30 - Zinc40 - Zirconium110- 111- 112- Conversions   SI Units   Symbols   Printer Version Science Periodic Table - Elements - Radon Symbol Rn Atomic Number 86 Relative Atomic Mass 12C = 12.0000 222.0176 (222Rn) Atomic Radius pm n/a First Ionisation Energy kJ mol-1 1040 Electronegativity n/a Density kg m-3 4400 [l., m.p.] 9.73 [g., 273 K] Molar Volume cm3 50.5 [211 K] Thermal Conductivity W m-1 K-1 0.00364 [300 K] (est.) Melting Point K 202 Boiling Point K 211.4 Number of Isotopes 28 Ground State Electron Configuration [Xe]4f145d106s26p6 Term Symbol 1S0 Discovery Discovered by F.E. Dorn (Halle, Germany) in 1900 Name Derived From Named after radium Name in Other Languages  Croatian Radon  Danish radon  Dutch radon  Finnish radon  French radon  German Radon  Italian radon (emanio)  Norwegian radon  Portuguese rádon  Spanish radón  Swedish radon Peter van der Krogt's Element Multidict - element name translations in over 48 langauges   [ H O M E ] [ S C I E N C E ] [ M A T H S ] [ A S T R O N O M Y ] Download | Shop | Contact | About   Page compiled: Wed Sep 05 18:37:55 GMT+01:00 2001