Note: This list only includes the 109 officially named elements. Also, there is some disagreement about the discovery year of some elements. Please see the element itself for additional discovery information, especially if you question our dates.
Name | Sym | # | Notes | |
---|---|---|---|---|
Unknown | Antimony | Sb | 51 | Known to ancient civilization |
Unknown | Bismuth | Bi | 83 | Known in the fifteenth century |
Unknown | Carbon | C | 6 | Known to prehistoric humans |
Unknown | Copper | Cu | 29 | Known to ancient civilization |
Unknown | Gold | Au | 79 | Known to ancient civilization |
Unknown | Iron | Fe | 26 | Known to ancient civilization |
Unknown | Lead | Pb | 82 | Known to ancient civilization |
Unknown | Mercury | Hg | 80 | Known to ancient civilization |
Unknown | Platinum | Pt | 78 | Known to pre-Columbian South Americans. Taken to Europe around 1750 |
Unknown | Silver | Ag | 47 | Known to ancient civilization |
Unknown | Sulfur | S | 16 | Known to ancient civilization |
Unknown | Tin | Sn | 50 | Known to ancient civilization |
Unknown | Zinc | Zn | 30 | Known in India and China before 1500 |
1250 | Arsenic | As | 33 | |
1669 | Phosphorus | P | 15 | |
1735 | Cobalt | Co | 27 | |
1751 | Nickel | Ni | 28 | |
1766 | Hydrogen | H | 1 | |
1772 | Nitrogen | N | 7 | |
1774 | Chlorine | Cl | 17 | |
1774 | Manganese | Mn | 25 | |
1774 | Oxygen | O | 8 | |
1781 | Molybdenum | Mo | 42 | |
1783 | Tellurium | Te | 52 | |
1783 | Tungsten | W | 74 | |
1789 | Uranium | U | 92 | |
1789 | Zirconium | Zr | 40 | |
1790 | Strontium | Sr | 38 | |
1791 | Titanium | Ti | 22 | |
1794 | Yttrium | Y | 39 | |
1797 | Beryllium | Be | 4 | |
1797 | Chromium | Cr | 24 | |
1801 | Niobium | Nb | 41 | |
1801 | Vanadium | V | 23 | |
1802 | Tantalum | Ta | 73 | |
1803 | Cerium | Ce | 58 | |
1803 | Iridium | Ir | 77 | |
1803 | Osmium | Os | 76 | |
1803 | Palladium | Pd | 46 | |
1803 | Rhodium | Rh | 45 | |
1807 | Potassium | K | 19 | |
1807 | Sodium | Na | 11 | |
1808 | Barium | Ba | 56 | |
1808 | Boron | B | 5 | |
1808 | Calcium | Ca | 20 | |
1808 | Magnesium | Mg | 12 | |
1808 | Ruthenium | Ru | 44 | |
1811 | Iodine | I | 53 | |
1817 | Cadmium | Cd | 48 | |
1817 | Lithium | Li | 3 | |
1817 | Selenium | Se | 34 | |
1824 | Silicon | Si | 14 | |
1825 | Aluminum | Al | 13 | |
1826 | Bromine | Br | 35 | |
1829 | Thorium | Th | 90 | |
1839 | Lanthanum | La | 57 | |
1842 | Erbium | Er | 68 | |
1843 | Terbium | Tb | 65 | |
1860 | Cesium | Cs | 55 | |
1861 | Rubidium | Rb | 37 | |
1861 | Thallium | Tl | 81 | |
1863 | Indium | In | 49 | |
1875 | Gallium | Ga | 31 | |
1878 | Holmium | Ho | 67 | |
1878 | Ytterbium | Yb | 70 | |
1879 | Samarium | Sm | 62 | |
1879 | Scandium | Sc | 21 | |
1879 | Thulium | Tm | 69 | |
1880 | Gadolinium | Gd | 64 | |
1885 | Neodymium | Nd | 60 | |
1885 | Praseodymium | Pr | 59 | |
1886 | Dysprosium | Dy | 66 | |
1886 | Fluorine | F | 9 | |
1886 | Germanium | Ge | 32 | |
1894 | Argon | Ar | 18 | |
1895 | Helium | He | 2 | |
1898 | Krypton | Kr | 36 | |
1898 | Neon | Ne | 10 | |
1898 | Polonium | Po | 84 | |
1898 | Radium | Ra | 88 | |
1898 | Xenon | Xe | 54 | |
1899 | Actinium | Ac | 89 | |
1900 | Radon | Rn | 86 | |
1901 | Europium | Eu | 63 | |
1907 | Lutetium | Lu | 71 | |
1913 | Protactinium | Pa | 91 | |
1923 | Hafnium | Hf | 72 | |
1925 | Rhenium | Re | 75 | |
1937 | Technetium | Tc | 43 | |
1939 | Francium | Fr | 87 | |
1940 | Astatine | At | 85 | |
1940 | Neptunium | Np | 93 | |
1940 | Plutonium | Pu | 94 | |
1944 | Americium | Am | 95 | |
1944 | Curium | Cm | 96 | |
1945 | Promethium | Pm | 61 | |
1949 | Berkelium | Bk | 97 | |
1950 | Californium | Cf | 98 | |
1952 | Einsteinium | Es | 99 | |
1952 | Fermium | Fm | 100 | |
1955 | Mendelevium | Md | 101 | |
1958 | Nobelium | No | 102 | |
1961 | Lawrencium | Lr | 103 | |
1969 | Rutherfordium | Rf | 104 | |
1970 | Dubnium | Db | 105 | |
1974 | Seaborgium | Sg | 106 | |
1975 | Bohrium | Bh | 107 | |
1982 | Meitnerium | Mt | 109 | |
1984 | Hassium | Hs | 108 | |
1994 | Darmstadtium | Ds | 110 | |
1994 | Roentgenium | Rg | 111 |
[Last Update: 2/22/2007]
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