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 - Iron Symbol Fe Atomic Number 26 Relative Atomic Mass 12C = 12.0000 55.845 Atomic Radius pm 124 First Ionisation Energy kJ mol-1 759.3 Electronegativity 1.83 Density kg m-3 7874 [293 K] 7035 [m.p.] Molar Volume cm3 7.09 Thermal Conductivity W m-1 K-1 80.2 [300 K] Melting Point K 1808 Boiling Point K 3023 Number of Isotopes 16 Ground State Electron Configuration [Ar]3d64s2 Term Symbol 5D4 Discovery Known to ancients Name Derived From Anglo-Saxon iron; Latin ferrum Name in Other Languages  Croatian Zeljezo  Danish jern  Dutch ijzer  Finnish rauta  French fer  German Eisen  Italian ferro  Norwegian jern  Portuguese ferro  Spanish hierro  Swedish järn 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 18:37:54 GMT+01:00 2001