| The Chemical Elements | ||||
|---|---|---|---|---|
| Element | Symbol | Atomic Number | Atomic Weight[1] | Percentage of Naturally Occurring Elements in the Universe |
| Hydrogen | H | 1 | 1.008 | 75 |
| Helium | He | 2 | 4.003 | 23 |
| Lithium | Li | 3 | 6.94 | 6 × 10−7 |
| Beryllium | Be | 4 | 9.012 | 1 × 10−7 |
| Boron | B | 5 | 10.821 | 1 × 10−7 |
| Carbon | C | 6 | 12.011 | 0.5 |
| Nitrogen | N | 7 | 14.007 | 0.1 |
| Oxygen | O | 8 | 15.999 | 1 |
| Fluorine | F | 9 | 18.998 | 4 × 10−5 |
| Neon | Ne | 10 | 20.180 | 0.13 |
| Sodium | Na | 11 | 22.990 | 0.002 |
| Magnesium | Mg | 12 | 24.305 | 0.06 |
| Aluminum | Al | 13 | 26.982 | 0.005 |
| Silicon | Si | 14 | 28.085 | 0.07 |
| Phosphorus | P | 15 | 30.974 | 7 × 10−4 |
| Sulfur | S | 16 | 32.06 | 0.05 |
| Chlorine | Cl | 17 | 35.45 | 1 × 10−4 |
| Argon | Ar | 18 | 39.948 | 0.02 |
| Potassium | K | 19 | 39.098 | 3 × 10−4 |
| Calcium | Ca | 20 | 40.078 | 0.007 |
| Scandium | Sc | 21 | 44.956 | 3 × 10−6 |
| Titanium | Ti | 22 | 47.867 | 3 × 10−4 |
| Vanadium | V | 23 | 50.942 | 3 × 10−4 |
| Chromium | Cr | 24 | 51.996 | 0.0015 |
| Manganese | Mn | 25 | 54.938 | 8 × 10−4 |
| Iron | Fe | 26 | 55.845 | 0.11 |
| Cobalt | Co | 27 | 58.933 | 3 × 10−4 |
| Nickel | Ni | 28 | 58.693 | 0.006 |
| Copper | Cu | 29 | 63.546 | 6 × 10−6 |
| Zinc | Zn | 30 | 65.38 | 3 × 10−5 |
| Gallium | Ga | 31 | 69.723 | 1 × 10−6 |
| Germanium | Ge | 32 | 72.630 | 2 × 10−5 |
| Arsenic | As | 33 | 74.922 | 8 × 10−7 |
| Selenium | Se | 34 | 78.971 | 3 × 10−6 |
| Bromine | Br | 35 | 79.904 | 7 × 10−7 |
| Krypton | Kr | 36 | 83.798 | 4 × 10−6 |
| Rubidium | Rb | 37 | 85.468 | 1 × 10−6 |
| Strontium | Sr | 38 | 87.62 | 4 × 10−6 |
| Yttrium | Y | 39 | 88.906 | 7 × 10−7 |
| Zirconium | Zr | 40 | 91.224 | 5 × 10−6 |
| Niobium | Nb | 41 | 92.906 | 2 × 10−7 |
| Molybdenum | Mo | 42 | 95.95 | 5 × 10−7 |
| Technetium | Tc | 43 | (98) | — |
| Ruthenium | Ru | 44 | 101.07 | 4 × 10−7 |
| Rhodium | Rh | 45 | 102.906 | 6 × 10−8 |
| Palladium | Pd | 46 | 106.42 | 2 × 10−7 |
| Silver | Ag | 47 | 107.868 | 6 × 10−8 |
| Cadmium | Cd | 48 | 112.414 | 2 × 10−7 |
| Indium | In | 49 | 114.818 | 3 × 10−8 |
| Tin | Sn | 50 | 118.710 | 4 × 10−7 |
| Antimony | Sb | 51 | 121.760 | 4 × 10−8 |
| Tellurium | Te | 52 | 127.60 | 9 × 10−7 |
| Iodine | I | 53 | 126.904 | 1 × 10−7 |
| Xenon | Xe | 54 | 131.293 | 1 × 10−6 |
| Cesium | Cs | 55 | 132.905 | 8 × 10−8 |
| Barium | Ba | 56 | 137.327 | 1 × 10−6 |
| Lanthanum | La | 57 | 138.905 | 2 × 10−7 |
| Cerium | Ce | 58 | 140.116 | 1 × 10−6 |
| Praseodymium | Pr | 59 | 140.907 | 2 × 10−7 |
| Neodymium | Nd | 60 | 144.242 | 1 × 10−6 |
| Promethium | Pm | 61 | (145) | — |
| Samarium | Sm | 62 | 150.36 | 5 × 10−7 |
| Europium | Eu | 63 | 151.964 | 5 × 10−8 |
| Gadolinium | Gd | 64 | 157.25 | 2 × 10−7 |
| Terbium | Tb | 65 | 158.925 | 5 × 10−8 |
| Dysprosium | Dy | 66 | 162.500 | 2 × 10−7 |
| Holmium | Ho | 67 | 164.930 | 5 × 10−8 |
| Erbium | Er | 68 | 167.259 | 2 × 10−7 |
| Thulium | Tm | 69 | 168.934 | 1 × 10−8 |
| Ytterbium | Yb | 70 | 173.054 | 2 × 10−7 |
| Lutetium | Lu | 71 | 174.967 | 1 × 10−8 |
| Hafnium | Hf | 72 | 178.49 | 7 × 10−8 |
| Tantalum | Ta | 73 | 180.948 | 8 × 10−9 |
| Tungsten | W | 74 | 183.84 | 5 × 10−8 |
| Rhenium | Re | 75 | 186.207 | 2 × 10−8 |
| Osmium | Os | 76 | 190.23 | 3 × 10−7 |
| Iridium | Ir | 77 | 192.217 | 2 × 10−7 |
| Platinum | Pt | 78 | 195.084 | 5 × 10−7 |
| Gold | Au | 79 | 196.967 | 6 × 10−8 |
| Mercury | Hg | 80 | 200.592 | 1 × 10−7 |
| Thallium | TI | 81 | 204.38 | 5 × 10−8 |
| Lead | Pb | 82 | 207.2 | 1 × 10−6 |
| Bismuth | Bi | 83 | 208.980 | 7 × 10−8 |
| Polonium | Po | 84 | (209) | — |
| Astatine | At | 85 | (210) | — |
| Radon | Rn | 86 | (222) | — |
| Francium | Fr | 87 | (223) | — |
| Radium | Ra | 88 | (226) | — |
| Actinium | Ac | 89 | (227) | — |
| Thorium | Th | 90 | 232.038 | 4 × 10−8 |
| Protactinium | Pa | 91 | 231.036 | — |
| Uranium | U | 92 | 238.029 | 2 × 10−8 |
| Neptunium | Np | 93 | (237) | — |
| Plutonium | Pu | 94 | (244) | — |
| Americium | Am | 95 | (243) | — |
| Curium | Cm | 96 | (247) | — |
| Berkelium | Bk | 97 | (247) | — |
| Californium | Cf | 98 | (251) | — |
| Einsteinium | Es | 99 | (252) | — |
| Fermium | Fm | 100 | (257) | — |
| Mendelevium | Md | 101 | (258) | — |
| Nobelium | No | 102 | (259) | — |
| Lawrencium | Lr | 103 | (262) | — |
| Rutherfordium | Rf | 104 | (267) | — |
| Dubnium | Db | 105 | (268) | — |
| Seaborgium | Sg | 106 | (271) | — |
| Bohrium | Bh | 107 | (272) | — |
| Hassium | Hs | 108 | (270) | — |
| Meitnerium | Mt | 109 | (276) | — |
| Darmstadtium | Ds | 110 | (281) | — |
| Roentgenium | Rg | 111 | (280) | — |
| Copernicium | Cn | 112 | (285) | — |
| Nihonium | Nh | 113 | (284) | — |
| Flerovium | Fl | 114 | (289) | — |
| Moskovium | Mc | 115 | (288) | — |
| Livermorium | Lv | 116 | (293) | — |
| Tennessine | Ts | 117 | (294) | — |
| Oganesson | Og | 118 | (294) | — |
A table titled “The Chemical Elements” with five columns and 119 rows. The first row is a header row and labels the columns “Element”, “Symbol”, “Atomic Number”, “Atomic Weight footnote: Where mean atomic weights have not been well determined, the atomic mass numbers of the most stable isotopes are given in parentheses.”, “Percentage of Naturally Occurring Elements in the Universe”. From left to right, top to bottom, the rows start with the element name and read “Hydrogen”, “H”, “1”, “1.008”, “75”. Helium”, “He”, “2”, “4.003”, “23”, Lithium”, “Li”, “3”, “6.94”, “6 times 10 to the negative 7”. Beryllium”, “Be”, “4”, “9.012”, “1 times 10 to the negative 7”, Boron”, “B”, “5”, “10.821”, “1 times 10 to the negative 7”, Carbon”, “C”, “6”, “12.011”, “0.5”, Nitrogen”, “N”, “7”, “14.007”, “0.1”, Oxygen”, “O”, “8”, “15.999”, “1”, Fluorine”, “F”, “9”, “18.998”, “4 times 10 to the negative 5”, Neon”, “Ne”, “10”, “20.180”, “0.13”, Sodium”, “Na”, “11”, “22.990”, “0.002”, Magnesium”, “Mg”, “12”, “24.305”, “0.06”, Aluminum”, “Al”, “13”, “26.982”, “0.005”, Silicon”, “Si”, “14”, “28.085”, “0.07”, Phosphorus”, “P”, “15”, “30.974”, “7 times 10 to the negative 4”, Sulfur”, “S”, “16”, “32.06”, “0.05”, Chlorine”, “Cl”, “17”, “35.45”, “1 times 10 to the negative 4”, Argon”, “Ar”, “18”, “39.948”, “0.02”, Potassium”, “K”, “19”, “39.098”, “3 times 10 to the negative 4”, Calcium”, “Ca”, “20”, “40.078”, “0.007”, Scandium”, “Sc”, “21”, “44.956”, “3 times 10 to the negative 6”, Titanium”, “Ti”, “22”, “47.867”, “3 times 10 to the negative 4”, Vanadium”, “V”, “23”, “50.942”, “3 times 10 to the negative 4”, Chromium”, “Cr”, “24”, “51.996”, “0.0015”, Manganese”, “Mn”, “25”, “54.938”, “8 times 10 to the negative 4”, Iron”, “Fe”, “26”, “55.845”, “0.11”, Cobalt”, “Co”, “27”, “58.933”, “3 times 10 to the negative 4”, Nickel”, “Ni”, “28”, “58.693”, “0.006”, Copper”, “Cu”, “29”, “63.546”, “6 times 10 to the negative 6”, Zinc”, “Zn”, “30”, “65.38”, “3 times 10 to the negative 5”, Gallium”, “Ga”, “31”, “69.723”, “1 times 10 to the negative 6”, Germanium”, “Ge”, “32”, “72.630”, “2 times 10 to the negative 5”, Arsenic”, “As”, “33”, “74.922”, “8 times 10 to the negative 7”, Selenium”, “Se”, “34”, “78.971”, “3 times 10 to the negative 6”, Bromine”, “Br”, “35”, “79.904”, “7 times 10 to the negative 7”, Krypton”, “Kr”, “36”, “83.798”, “4 times 10 to the negative 6”, Rubidium”, “Rb”, “37”, “85.468”, “1 times 10 to the negative 6”, Strontium”, “Sr”, “38”, “87.62”, “4 times 10 to the negative 6”, Yttrium”, “Y”, “39”, “88.906”, “7 times 10 to the negative 7”, Zirconium”, “Zr”, “40”, “91.224”, “5 times 10 to the negative 6”, Niobium”, “Nb”, “41”, “92.906”, “2 times 10 to the negative 7”, Molybdenum”, “Mo”, “42”, “95.95”, “5 times 10 to the negative 7”, Technetium”, “Tc”, “43”, “(98)”, “blank”, Ruthenium”, “Ru”, “44”, “101.07”, “4 times 10 to the negative 7”, Rhodium”, “Rh”, “45”, “102.906”, “6 times 10 to the negative 8”, Palladium”, “Pd”, “46”, “106.42”, “2 times 10 to the negative 7”, Silver”, “Ag”, “47”, “107.868”, “6 times 10 to the negative 8”, Cadmium”, “Cd”, “48”, “112.414”, “2 times 10 to the negative 7”, Indium”, “In”, “49”, “114.818”, “3 times 10 to the negative 8”, Tin”, “Sn”, “50”, “118.710”, “4 times 10 to the negative 7”, Antimony”, “Sb”, “51”, “121.760”, “4 times 10 to the negative 8”, Tellurium”, “Te”, “52”, “127.60”, “9 times 10 to the negative 7”, Iodine”, “I”, “53”, “126.904”, “1 times 10 to the negative 7”, Xenon”, “Xe”, “54”, “131.293”, “1 times 10 to the negative 6”, Cesium”, “Cs”, “55”, “132.905”, “8 times 10 to the negative 8”, Barium”, “Ba”, “56”, “137.327”, “1 times 10 to the negative 6”, Lanthanum”, “La”, “57”, “138.905”, “2 times 10 to the negative 7”, Cerium”, “Ce”, “58”, “140.116”, “1 times 10 to the negative 6”, Praseodymium”, “Pr”, “59”, “140.907”, “2 times 10 to the negative 7”, Neodymium”, “Nd”, “60”, “144.242”, “1 times 10 to the negative 6”, Promethium”, “Pm”, “61”, “(145)”, “blank”, Samarium”, “Sm”, “62”, “150.36”, “5 times 10 to the negative 7”, Europium”, “Eu”, “63”, “151.964”, “5 times 10 to the negative 8”, Gadolinium”, “Gd”, “64”, “157.25”, “2 times 10 to the negative 7”, Terbium”, “Tb”, “65”, “158.925”, “5 times 10 to the negative 8”, Dysprosium”, “Dy”, “66”, “162.500”, “2 times 10 to the negative 7”, Holmium”, “Ho”, “67”, “164.930”, “5 times 10 to the negative 8”, Erbium”, “Er”, “68”, “167.259”, “2 times 10 to the negative 7”, Thulium”, “Tm”, “69”, “168.934”, “1 times 10 to the negative 8”, Ytterbium”, “Yb”, “70”, “173.054”, “2 times 10 to the negative ”, ”, Lutetium”, “Lu”, “71”, “174.967”, “1 times 10 to the negative 8”, Hafnium”, “Hf”, “72”, “178.49”, “7 times 10 to the negative 8”, Tantalum”, “Ta”, “73”, “180.948”, “8 times 10 to the negative 9”, Tungsten”, “W”, “74”, “183.84”, “5 times 10 to the negative 8”, Rhenium”, “Re”, “75”, “186.207”, “2 times 10 to the negative 8”, Osmium”, “Os”, “76”, “190.23”, “3 times 10 to the negative 7”, Iridium”, “Ir”, “77”, “192.217”, “2 times 10 to the negative 7”, Platinum”, “Pt”, “78”, “195.084”, “5 times 10 to the negative 7”, Gold”, “Au”, “79”, “196.967”, “6 times 10 to the negative 8”, Mercury”, “Hg”, “80”, “200.592”, “1 times 10 to the negative 7”, Thallium”, “TI”, “81”, “204.38”, “5 times 10 to the negative 8”, Lead”, “Pb”, “82”, “207.2”, “1 times 10 to the negative 6”, Bismuth”, “Bi”, “83”, “208.980”, “7 times 10 to the negative 8”, Polonium”, “Po”, “84”, “(209)”, “blank”, Astatine”, “At”, “85”, “(210)”, “blank”, Radon”, “Rn”, “86”, “(222)”, “blank”, Francium”, “Fr”, “87”, “(223)”, “blank”, Radium”, “Ra”, “88”, “(226)”, “blank”, Actinium”, “Ac”, “89”, “(227)”, “blank”, Thorium”, “Th”, “90”, “232.038”, “4 times 10 to the negative 8”, Protactinium”, “Pa”, “91”, “231.036”, “blank”, Uranium”, “U”, “92”, “238.029”, “2 times 10 to the negative 8”, Neptunium”, “Np”, “93”, “(237)”, “blank”, Plutonium”, “Pu”, “94”, “(244)”, “blank”, Americium”, “Am”, “95”, “(243)”, “blank”, Curium”, “Cm”, “96”, “(247)”, “blank”, Berkelium”, “Bk”, “97”, “(247)”, “blank”, Californium”, “Cf”, “98”, “(251)”, “blank”, Einsteinium”, “Es”, “99”, “(252)”, “blank”, Fermium”, “Fm”, “100”, “(257)”, “blank”, Mendelevium”, “Md”, “101”, “(258)”, “blank”, Nobelium”, “No”, “102”, “(259)”, “blank”, Lawrencium”, “Lr”, “103”, “(262)”, “blank”, Rutherfordium”, “Rf”, “104”, “(267)”, “blank”, Dubnium”, “Db”, “105”, “(268)”, “blank”, Seaborgium”, “Sg”, “106”, “(271)”, “blank”, Bohrium”, “Bh”, “107”, “(272)”, “blank”, Hassium”, “Hs”, “108”, “(270)”, “blank”, Meitnerium”, “Mt”, “109”, “(276)”, “blank”, Darmstadtium”, “Ds”, “110”, “(281)”, “blank”, Roentgenium”, “Rg”, “111”, “(280)”, “blank”, Copernicium”, “Cn”, “112”, “(285)”, “blank”, Ununtrium”, “Uut”, “113”, “(284)”, “blank”, Flerovium”, “Fl”, “114”, “(289)”, “blank”, Ununpentium”, “Uup”, “115”, “(288)”, “blank”, Livermorium”, “Lv”, “116”, “(293)”, “blank”, Tennessine, Ts, “117”, “(294)”, “blank”, Oganesson, “Og”, “118”, “(294)”, “blank”.