Last updated on August 22nd, 2024
This page contains the list of the Chemical elements identified and named by the International Union of Pure and Applied Chemistry. IUPAC is registered in Zürich, Switzerland, and the administrative office, known as the “IUPAC Secretariat”, is in Research Triangle Park, North Carolina, United States.
Below is a list of 118 elements with their symbol, atomic number, atomic weight, year of discovery. Hope this proves useful to you. Thank you!
| Serial | Element | Symbol | Atomic number | Atomic weight | Year discovered | |
|---|---|---|---|---|---|---|
| 1. | Hydrogen | H | 1 | 1.0079 | 1766 | |
| 2. | Helium | He | 2 | 4.0026 | 1868 | |
| 3. | Lithium | Li | 3 | 6.938 | 1817 | |
| 4. | Berylium | Be | 4 | 9.01218 | 1798 | |
| 5. | Boron | Bo | 5 | 10.806 | 1808 | |
| 6. | Carbon | C | 6 | 12.0096 | 3750 BC | |
| 7. | Nitrogen | N | 7 | 14.0064 | 1772 | |
| 8. | Oxygen | O | 8 | 15.999 | 1771 | |
| 9. | Fluorine | F | 9 | 18.9984 | 1810 | |
| 10. | Neon | Ne | 10 | 20.1797 | 1898 | |
| 11. | Sodium | Na | 11 | 22.9898 | 1807 | |
| 12. | Magnesium | Mg | 12 | 24.304 | 1755 | |
| 13. | Aluminium | Al | 13 | 26.9815 | 1825 | |
| 14. | Silicon | Si | 14 | 28.084 | 1823 | |
| 15. | Phosphorus | P | 15 | 30.9738 | 1669 | |
| 16. | Sulfur | S | 16 | 32.059 | 2000 BC | |
| 17. | Chlorine | Cl | 17 | 35.446 | 1774 | |
| 18. | Argon | Ar | 18 | 39.792 | 1894 | |
| 19. | Potassium | K | 19 | 39.0983 | 1807 | |
| 20. | Calcium | Ca | 20 | 40.0784 | 1808 | |
| 21. | Scandium | Sc | 21 | 44.9559 | 1879 | |
| 22. | Titanium | Ti | 22 | 47.8671 | 1791 | |
| 23. | Vanadium | V | 23 | 50.9415 | 1801 | |
| 24. | Chromium | Cr | 24 | 51.9962 | 1794 | |
| 25. | Manganese | Mn | 25 | 54.938 | 1774 | |
| 26. | Iron | Fe | 26 | 55.8452 | 5000 BC | |
| 27. | Cobalt | Co | 27 | 58.9332 | 1734 | |
| 28. | Nickel | Ni | 28 | 58.6934 | 1751 | |
| 29. | Copper | Cu | 29 | 63.5463 | 9000 BC | |
| 30. | Zinc | Zn | 30 | 65.382 | 1000 BC | |
| 31. | Gallium | Ga | 31 | 69.7231 | 1875 | |
| 32. | Germanium | Ge | 32 | 72.6308 | 1886 | |
| 33. | Arsenic | As | 33 | 74.9216 | 815 | |
| 34. | Selenium | Se | 34 | 78.9718 | 1817 | |
| 35. | Bromine | Br | 35 | 79.901 | 1825 | |
| 36. | Krypton | Kr | 36 | 83.7982 | 1898 | |
| 37. | Rubidium | Rb | 37 | 85.4678 | 1861 | |
| 38. | Strontium | Sr | 38 | 87.621 | 1787 | |
| 39. | Yttrium | Y | 39 | 88.9058 | 1794 | |
| 40. | Zirconium | Zr | 40 | 91.2242 | 1789 | |
| 41. | Niobium | Nb | 41 | 92.9064 | 1801 | |
| 42. | Molybdenum | Mo | 42 | 95.951 | 1778 | |
| 43. | Technetium | Tc | 43 | 98.9062 | 1937 | |
| 44. | Ruthenium | Ru | 44 | 101.072 | 1844 | |
| 45. | Rhodium | Rh | 45 | 102.906 | 1804 | |
| 46. | Palladium | Pd | 46 | 106.421 | 1802 | |
| 47. | Silver | Ag | 47 | 107.868 | 5000 BC | |
| 48. | Cadmium | Cd | 48 | 112.414 | 1817 | |
| 49. | Indium | In | 49 | 114.818 | 1863 | |
| 50. | Tin | Sn | 50 | 118.711 | 3500 BC | |
| 51. | Antimony | Sb | 51 | 121.76 | 815 | |
| 52. | Tellurium | Te | 52 | 127.603 | 782 | |
| 53. | Iodine | I | 53 | 126.904 | 1811 | |
| 54. | Xenon | Xe | 54 | 131.294 | 1898 | |
| 55. | Cesium | Cs | 55 | 132.905 | 1860 | |
| 56. | Barium | Ba | 56 | 137.328 | 1772 | |
| 57. | Lanthanum | La | 57 | 138.905 | 1838 | |
| 58. | Cerium | Ce | 58 | 140.116 | 1803 | |
| 59. | Praseodymium | Pr | 59 | 140.908 | 1885 | |
| 60. | Neodymium | Nd | 60 | 144.242 | 1885 | |
| 61. | Promethium | Pm | 61 | 145 | 1942 | |
| 62. | Samarium | Sm | 62 | 150.362 | 1879 | |
| 63. | Europium | Eu | 63 | 151.964 | 1896 | |
| 64. | Gadolinium | Gd | 64 | 157.253 | 1880 | |
| 65. | Terbium | Tb | 65 | 158.925 | 1843 | |
| 66. | Dysprosium | Dy | 66 | 162.5 | 1886 | |
| 67. | Holmium | Ho | 67 | 164.93 | 1878 | |
| 68. | Erbium | Er | 68 | 167.259 | 1843 | |
| 69. | Thulium | Tm | 69 | 168.934 | 1879 | |
| 70. | Ytterbium | Yb | 70 | 173.045 | 1878 | |
| 71. | Lutetium | Lu | 71 | 174.967 | 1906 | |
| 72. | Hafnium | Hf | 72 | 178.492 | 1922 | |
| 73. | Tantalum | Ta | 73 | 180.948 | 1802 | |
| 74. | Tungsten | W | 74 | 183.841 | 1781 | |
| 75. | Rhenium | Re | 75 | 186.207 | 1908 | |
| 76. | Osmium | Os | 76 | 190.233 | 1803 | |
| 77. | Iridium | Ir | 77 | 192.217 | 1803 | |
| 78. | Platinum | Pt | 78 | 195.085 | 1735 | |
| 79. | Gold | Au | 79 | 196.967 | 6000 BC | |
| 80. | Mercury | Hg | 80 | 200.592 | 1500 BC | |
| 81. | Thallium | Tl | 81 | 204.382 | 1861 | |
| 82. | Lead | Pb | 82 | 207.21 | 7000 BC | |
| 83. | Bismuth | Bi | 83 | 208.98 | 1000 | |
| 84. | Polonium | Po | 84 | 209 | 1898 | |
| 85. | Astatine | At | 85 | 210 | 1940 | |
| 86. | Radon | Rn | 86 | 222 | 1899 | |
| 87. | Francium | Fr | 87 | 223 | 1939 | |
| 88. | Radium | Ra | 88 | 226 | 1898 | |
| 89. | Actinium | Ac | 89 | 227 | 1902 | |
| 90. | Thorium | Th | 90 | 232.038 | 1829 | |
| 91. | Protactinium | Pa | 91 | 231.036 | 1913 | |
| 92. | Uranium | U | 92 | 238.029 | 1789 | |
| 93. | Neptunium | Np | 93 | 237 | 1940 | |
| 94. | Plutonium | Pu | 94 | 244 | 1940 | |
| 95. | Americium | Am | 95 | 243 | 1944 | |
| 96. | Curium | Cm | 96 | 247 | 1944 | |
| 97. | Berkelium | Bk | 97 | 247 | 1949 | |
| 98. | Californium | Cf | 98 | 251 | 1950 | |
| 99. | Einsteinium | Es | 99 | 252 | 1952 | |
| 100. | Fermium | Fm | 100 | 257 | 1952 | |
| 101. | Mendelevium | Md | 101 | 258 | 1955 | |
| 102. | Nobelium | No | 102 | 259 | 1966 | |
| 103. | Lawrencium | Lr | 103 | 262 | 1961 | |
| 104. | Rutherfordium | Rf | 104 | 261 | 1969 | |
| 105. | Dubnium | Db | 105 | 268 | 1970 | |
| 106. | Seaborgium | Sg | 106 | 269 | 1974 | |
| 107. | Bohrium | Bh | 107 | 270.133 | 1981 | |
| 108. | Hassium | Hs | 108 | 269 | 1984 | |
| 109. | Meitnerium | Mt | 109 | 277.154 | 1982 | |
| 110. | Darmstadtium | Ds | 110 | 281 | 1994 | |
| 111. | Roentgenium | Rg | 111 | 281 | 1994 | |
| 112. | Copernicium | Cn | 112 | 285 | 1996 | |
| 113. | Nihonium | Nh | 113 | 286 | 2003 | |
| 114. | Flerovium | Fl | 114 | 289 | 1999 | |
| 115. | Moscovium | Mc | 115 | 288 | 2003 | |
| 116. | Livermorium | Lv | 116 | 293 | 2000 | |
| 117. | Tennessine | Ts | 117 | 294 | 2009 | |
| 118. | Oganesson | Og | 118 | 294 | 2002 | |
| Table last updated | August 17, 2024 |