Periodic Table of Elements

Tweet Email Cite Download PubChem Periodic Table of Elements w/Chemical Group Block TABLE LIST W/PROPERTIESGAME Help 1 H Hydrogen Nonmetal 1 H Hydrogen Nonmetal Atomic Number Symbol Name Chemical Group Block DISPLAY PROPERTY/TREND Chemical Group Block 2 He Helium Noble Gas 3 Li Lithium Alkali Metal 4 Be Beryllium Alkaline Earth Metal 5 B Boron Metalloid 6 C Carbon Nonmetal 7 N Nitrogen Nonmetal 8 O Oxygen Nonmetal 9 F Fluorine Halogen 10 Ne Neon Noble Gas 11 Na Sodium Alkali Metal 12 Mg Magnesium Alkaline Earth Metal 13 Al Aluminum Post-Transition Metal 14 Si Silicon Metalloid 15 P Phosphorus Nonmetal 16 S Sulfur Nonmetal 17 Cl Chlorine Halogen 18 Ar Argon Noble Gas 19 K Potassium Alkali Metal 20 Ca Calcium Alkaline Earth Metal 21 Sc Scandium Transition Metal 22 Ti Titanium Transition Metal 23 V Vanadium Transition Metal 24 Cr Chromium Transition Metal 25 Mn Manganese Transition Metal 26 Fe Iron Transition Metal 27 Co Cobalt Transition Metal 28 Ni Nickel Transition Metal 29 Cu Copper Transition Metal 30 Zn Zinc Transition Metal 31 Ga Gallium Post-Transition Metal 32 Ge Germanium Metalloid 33 As Arsenic Metalloid 34 Se Selenium Nonmetal 35 Br Bromine Halogen 36 Kr Krypton Noble Gas 37 Rb Rubidium Alkali Metal 38 Sr Strontium Alkaline Earth Metal 39 Y Yttrium Transition Metal 40 Zr Zirconium Transition Metal 41 Nb Niobium Transition Metal 42 Mo Molybdenum Transition Metal 43 Tc Technetium Transition Metal 44 Ru Ruthenium Transition Metal 45 Rh Rhodium Transition Metal 46 Pd Palladium Transition Metal 47 Ag Silver Transition Metal 48 Cd Cadmium Transition Metal 49 In Indium Post-Transition Metal 50 Sn Tin Post-Transition Metal 51 Sb Antimony Metalloid 52 Te Tellurium Metalloid 53 I Iodine Halogen 54 Xe Xenon Noble Gas 55 Cs Cesium Alkali Metal 56 Ba Barium Alkaline Earth Metal * 72 Hf Hafnium Transition Metal 73 Ta Tantalum Transition Metal 74 W Tungsten Transition Metal 75 Re Rhenium Transition Metal 76 Os Osmium Transition Metal 77 Ir Iridium Transition Metal 78 Pt Platinum Transition Metal 79 Au Gold Transition Metal 80 Hg Mercury Transition Metal 81 Tl Thallium Post-Transition Metal 82 Pb Lead Post-Transition Metal 83 Bi Bismuth Post-Transition Metal 84 Po Polonium Metalloid 85 At Astatine Halogen 86 Rn Radon Noble Gas 87 Fr Francium Alkali Metal 88 Ra Radium Alkaline Earth Metal ** 104 Rf Rutherfordium Transition Metal 105 Db Dubnium Transition Metal 106 Sg Seaborgium Transition Metal 107 Bh Bohrium Transition Metal 108 Hs Hassium Transition Metal 109 Mt Meitnerium Transition Metal 110 Ds Darmstadtium Transition Metal 111 Rg Roentgenium Transition Metal 112 Cn Copernicium Transition Metal 113 Nh Nihonium Post-Transition Metal 114 Fl Flerovium Post-Transition Metal 115 Mc Moscovium Post-Transition Metal 116 Lv Livermorium Post-Transition Metal 117 Ts Tennessine Halogen 118 Og Oganesson Noble Gas * 57 La Lanthanum Lanthanide 58 Ce Cerium Lanthanide 59 Pr Praseodymium Lanthanide 60 Nd Neodymium Lanthanide 61 Pm Promethium Lanthanide 62 Sm Samarium Lanthanide 63 Eu Europium Lanthanide 64 Gd Gadolinium Lanthanide 65 Tb Terbium Lanthanide 66 Dy Dysprosium Lanthanide 67 Ho Holmium Lanthanide 68 Er Erbium Lanthanide 69 Tm Thulium Lanthanide 70 Yb Ytterbium Lanthanide 71 Lu Lutetium Lanthanide ** 89 Ac Actinium Actinide 90 Th Thorium Actinide 91 Pa Protactinium Actinide 92 U Uranium Actinide 93 Np Neptunium Actinide 94 Pu Plutonium Actinide 95 Am Americium Actinide 96 Cm Curium Actinide 97 Bk Berkelium Actinide 98 Cf Californium Actinide 99 Es Einsteinium Actinide 100 Fm Fermium Actinide 101 Md Mendelevium Actinide 102 No Nobelium Actinide 103 Lr Lawrencium Actinide LIST OF ELEMENTS W/CHEMICAL GROUP BLOCK Element Chemical Group Block 1 H Hydrogen Hydrogen Nonmetal 2 He Helium Helium Noble Gas 3 Li Lithium Lithium Alkali Metal 4 Be Beryllium Beryllium Alkaline Earth Metal 5 B Boron Boron Metalloid 6 C Carbon Carbon Nonmetal 7 N Nitrogen Nitrogen Nonmetal 8 O Oxygen Oxygen Nonmetal 9 F Fluorine Fluorine Halogen 10 Ne Neon Neon Noble Gas 11 Na Sodium Sodium Alkali Metal 12 Mg Magnesium Magnesium Alkaline Earth Metal 13 Al Aluminum Aluminum Post-Transition Metal 14 Si Silicon Silicon Metalloid 15 P Phosphorus Phosphorus Nonmetal 16 S Sulfur Sulfur Nonmetal 17 Cl Chlorine Chlorine Halogen 18 Ar Argon Argon Noble Gas 19 K Potassium Potassium Alkali Metal 20 Ca Calcium Calcium Alkaline Earth Metal 21 Sc Scandium Scandium Transition Metal 22 Ti Titanium Titanium Transition Metal 23 V Vanadium Vanadium Transition Metal 24 Cr Chromium Chromium Transition Metal 25 Mn Manganese Manganese Transition Metal 26 Fe Iron Iron Transition Metal 27 Co Cobalt Cobalt Transition Metal 28 Ni Nickel Nickel Transition Metal 29 Cu Copper Copper Transition Metal 30 Zn Zinc Zinc Transition Metal 31 Ga Gallium Gallium Post-Transition Metal 32 Ge Germanium Germanium Metalloid 33 As Arsenic Arsenic Metalloid 34 Se Selenium Selenium Nonmetal 35 Br Bromine Bromine Halogen 36 Kr Krypton Krypton Noble Gas 37 Rb Rubidium Rubidium Alkali Metal 38 Sr Strontium Strontium Alkaline Earth Metal 39 Y Yttrium Yttrium Transition Metal 40 Zr Zirconium Zirconium Transition Metal 41 Nb Niobium Niobium Transition Metal 42 Mo Molybdenum Molybdenum Transition Metal 43 Tc Technetium Technetium Transition Metal 44 Ru Ruthenium Ruthenium Transition Metal 45 Rh Rhodium Rhodium Transition Metal 46 Pd Palladium Palladium Transition Metal 47 Ag Silver Silver Transition Metal 48 Cd Cadmium Cadmium Transition Metal 49 In Indium Indium Post-Transition Metal 50 Sn Tin Tin Post-Transition Metal 51 Sb Antimony Antimony Metalloid 52 Te Tellurium Tellurium Metalloid 53 I Iodine Iodine Halogen 54 Xe Xenon Xenon Noble Gas 55 Cs Cesium Cesium Alkali Metal 56 Ba Barium Barium Alkaline Earth Metal 57 La Lanthanum Lanthanum Lanthanide 58 Ce Cerium Cerium Lanthanide 59 Pr Praseodymium Praseodymium Lanthanide 60 Nd Neodymium Neodymium Lanthanide 61 Pm Promethium Promethium Lanthanide 62 Sm Samarium Samarium Lanthanide 63 Eu Europium Europium Lanthanide 64 Gd Gadolinium Gadolinium Lanthanide 65 Tb Terbium Terbium Lanthanide 66 Dy Dysprosium Dysprosium Lanthanide 67 Ho Holmium Holmium Lanthanide 68 Er Erbium Erbium Lanthanide 69 Tm Thulium Thulium Lanthanide 70 Yb Ytterbium Ytterbium Lanthanide 71 Lu Lutetium Lutetium Lanthanide 72 Hf Hafnium Hafnium Transition Metal 73 Ta Tantalum Tantalum Transition Metal 74 W Tungsten Tungsten Transition Metal 75 Re Rhenium Rhenium Transition Metal 76 Os Osmium Osmium Transition Metal 77 Ir Iridium Iridium Transition Metal 78 Pt Platinum Platinum Transition Metal 79 Au Gold Gold Transition Metal 80 Hg Mercury Mercury Transition Metal 81 Tl Thallium Thallium Post-Transition Metal 82 Pb Lead Lead Post-Transition Metal 83 Bi Bismuth Bismuth Post-Transition Metal 84 Po Polonium Polonium Metalloid 85 At Astatine Astatine Halogen 86 Rn Radon Radon Noble Gas 87 Fr Francium Francium Alkali Metal 88 Ra Radium Radium Alkaline Earth Metal 89 Ac Actinium Actinium Actinide 90 Th Thorium Thorium Actinide 91 Pa Protactinium Protactinium Actinide 92 U Uranium Uranium Actinide 93 Np Neptunium Neptunium Actinide 94 Pu Plutonium Plutonium Actinide 95 Am Americium Americium Actinide 96 Cm Curium Curium Actinide 97 Bk Berkelium Berkelium Actinide 98 Cf Californium Californium Actinide 99 Es Einsteinium Einsteinium Actinide 100 Fm Fermium Fermium Actinide 101 Md Mendelevium Mendelevium Actinide 102 No Nobelium Nobelium Actinide 103 Lr Lawrencium Lawrencium Actinide 104 Rf Rutherfordium Rutherfordium Transition Metal 105 Db Dubnium Dubnium Transition Metal 106 Sg Seaborgium Seaborgium Transition Metal 107 Bh Bohrium Bohrium Transition Metal 108 Hs Hassium Hassium Transition Metal 109 Mt Meitnerium Meitnerium Transition Metal 110 Ds Darmstadtium Darmstadtium Transition Metal 111 Rg Roentgenium Roentgenium Transition Metal 112 Cn Copernicium Copernicium Transition Metal 113 Nh Nihonium Nihonium Post-Transition Metal 114 Fl Flerovium Flerovium Post-Transition Metal 115 Mc Moscovium Moscovium Post-Transition Metal 116 Lv Livermorium Livermorium Post-Transition Metal 117 Ts Tennessine Tennessine Halogen 118 Og Oganesson Oganesson Noble Gas PRINTABLE IMAGE (PNG) OR PDF OF THE PERIODIC TABLE Periodic Table_of_Elements_w_Chemical_Group_BlockPeriodic Table Image PNG PDF Why Arrange Elements in a Table? Seeing chemical elements arranged in the modern periodic table is as familiar as seeing a map of the world, but it was not always so obvious. The creator of the periodic table, Dmitri Mendeleev, in 1869 began collecting and sorting known properties of elements, like he was playing a game, while traveling by train. He noticed that there were groups of elements that exhibited similar properties, but he also noticed that there were plenty of exceptions to the emerging patterns. Incredibly, instead of giving up, he tried altering the measured property values to better fit the patterns! He also predicted that certain elements must exist which didn’t at the time – again, in an effort to get the patterns in his "game" to work out. There were plenty of skeptics and it took years to gain international acceptance, but once newly-discovered elements matched the ones that Mendeleev predicted, his patterns could not be dismissed. In addition, some of the properties that he "fudged" were later recalculated and found to be much closer to his predictions. Does the Modern Periodic Table Change? If So, How and Who Does That? The periodic table as we know it today is managed by the International Union of Pure and Applied Chemistry, or IUPAC (eye-you-pack). While much of what is in the periodic table is stable and unlikely to change, the IUPAC organization is responsible for deciding what needs to be changed. They have created criteria for what constitutes the discovery of a new element. In addition, any new element must be assigned a temporary name and symbol, and if validated, given an official name. Such was the case when IUPAC recently reviewed elements 113, 115, 117 and 118, and decided to give them official names and symbols (goodbye, ununseptium and hello, tennessine!). Atomic weights found within a periodic table one might think are constant. The truth is that atomic weights have changed as a function of time. Since 1899 the IUPAC Commission on Isotopic Abundances and Atomic Weights (CIAAW) has been evaluating atomic weights and abundances. For example, Carbon had an atomic weight of 12.00 in 1902 but today it is [12.0096, 12.0116]! Times sure have changed as the source of the sample will determine the value. Finally, IUPAC assigns collective names (lanthanoids and actinoids) and group numbering (1 to 18) and has investigated the membership of the group 3 elements. PubChem is working with IUPAC to help make information about the ele