Periodic Table Catalog
All 118 chemical elements (Z = 1–118) with symbol, name, standard atomic weight, period, group, block, category, and four physical properties. Every row is read live at build time from OnlyCSharp.Data.Catalogs.Chemistry.PeriodicTable.PeriodicTable.AllElements. Authored as .razor; rendered to static HTML.
Sources: IUPAC element names/symbols/atomic numbers (uncopyrightable nomenclature facts) and NIST/CIAAW standard atomic weights (U.S. Government public domain, 17 U.S.C. §105); physical-property fields from Wikidata (CC0). Blank cells (—) are unmeasured / undefined / genuinely disputed — not guessed. See the leaf PROVENANCE.md.
| Z | Sym | Name | Weight | Per | Grp | Block | Category | χ (Pauling) | Melt (K) | Boil (K) | Density (g/cm³) | Discovered |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | H | Hydrogen | 1.008 | 1 | 1 | S | ReactiveNonmetal | 2.20 | 14.01 | 20.28 | 0.0001 | 1766 |
| 2 | He | Helium | 4.003 | 1 | 18 | S | NobleGas | — | — | 4.22 | 0.0002 | 1868 |
| 3 | Li | Lithium | 6.940 | 2 | 1 | S | AlkaliMetal | 0.98 | 453.65 | 1603.00 | 0.5340 | 1817 |
| 4 | Be | Beryllium | 9.012 | 2 | 2 | S | AlkalineEarth | 1.57 | 1560.00 | 2742.00 | 1.8500 | 1798 |
| 5 | B | Boron | 10.810 | 2 | 13 | P | Metalloid | 2.04 | 2349.00 | 4200.00 | 2.3400 | 1808 |
| 6 | C | Carbon | 12.011 | 2 | 14 | P | ReactiveNonmetal | 2.55 | 3823.00 | — | 2.2670 | — |
| 7 | N | Nitrogen | 14.007 | 2 | 15 | P | ReactiveNonmetal | 3.04 | 63.15 | 77.36 | 0.0013 | 1772 |
| 8 | O | Oxygen | 15.999 | 2 | 16 | P | ReactiveNonmetal | 3.44 | 54.36 | 90.19 | 0.0014 | 1774 |
| 9 | F | Fluorine | 18.998 | 2 | 17 | P | ReactiveNonmetal | 3.98 | 53.53 | 85.03 | 0.0017 | 1886 |
| 10 | Ne | Neon | 20.180 | 2 | 18 | P | NobleGas | — | 24.56 | 27.07 | 0.0009 | 1898 |
| 11 | Na | Sodium | 22.990 | 3 | 1 | S | AlkaliMetal | 0.93 | 370.87 | 1156.00 | 0.9710 | 1807 |
| 12 | Mg | Magnesium | 24.305 | 3 | 2 | S | AlkalineEarth | 1.31 | 923.00 | 1363.00 | 1.7380 | 1808 |
| 13 | Al | Aluminium | 26.982 | 3 | 13 | P | PostTransitionMetal | 1.61 | 933.47 | 2792.00 | 2.7000 | 1825 |
| 14 | Si | Silicon | 28.085 | 3 | 14 | P | Metalloid | 1.90 | 1687.00 | 3538.00 | 2.3296 | 1824 |
| 15 | P | Phosphorus | 30.974 | 3 | 15 | P | ReactiveNonmetal | 2.19 | 317.30 | 550.40 | 1.8230 | 1669 |
| 16 | S | Sulfur | 32.060 | 3 | 16 | P | ReactiveNonmetal | 2.58 | 388.36 | 717.80 | 2.0700 | — |
| 17 | Cl | Chlorine | 35.450 | 3 | 17 | P | ReactiveNonmetal | 3.16 | 171.60 | 239.11 | 0.0032 | 1774 |
| 18 | Ar | Argon | 39.950 | 3 | 18 | P | NobleGas | — | 83.80 | 87.30 | 0.0018 | 1894 |
| 19 | K | Potassium | 39.098 | 4 | 1 | S | AlkaliMetal | 0.82 | 336.53 | 1032.00 | 0.8620 | 1807 |
| 20 | Ca | Calcium | 40.078 | 4 | 2 | S | AlkalineEarth | 1.00 | 1115.00 | 1757.00 | 1.5500 | 1808 |
| 21 | Sc | Scandium | 44.956 | 4 | 3 | D | TransitionMetal | 1.36 | 1814.00 | 3109.00 | 2.9850 | 1879 |
| 22 | Ti | Titanium | 47.867 | 4 | 4 | D | TransitionMetal | 1.54 | 1941.00 | 3560.00 | 4.5060 | 1791 |
| 23 | V | Vanadium | 50.942 | 4 | 5 | D | TransitionMetal | 1.63 | 2183.00 | 3680.00 | 6.0000 | 1801 |
| 24 | Cr | Chromium | 51.996 | 4 | 6 | D | TransitionMetal | 1.66 | 2180.00 | 2944.00 | 7.1500 | 1797 |
| 25 | Mn | Manganese | 54.938 | 4 | 7 | D | TransitionMetal | 1.55 | 1519.00 | 2334.00 | 7.2100 | 1774 |
| 26 | Fe | Iron | 55.845 | 4 | 8 | D | TransitionMetal | 1.83 | 1811.00 | 3134.00 | 7.8700 | — |
| 27 | Co | Cobalt | 58.933 | 4 | 9 | D | TransitionMetal | 1.88 | 1768.00 | 3200.00 | 8.9000 | 1735 |
| 28 | Ni | Nickel | 58.693 | 4 | 10 | D | TransitionMetal | 1.91 | 1728.00 | 3186.00 | 8.9080 | 1751 |
| 29 | Cu | Copper | 63.546 | 4 | 11 | D | TransitionMetal | 1.90 | 1357.77 | 2835.00 | 8.9600 | — |
| 30 | Zn | Zinc | 65.380 | 4 | 12 | D | TransitionMetal | 1.65 | 692.68 | 1180.00 | 7.1400 | 1746 |
| 31 | Ga | Gallium | 69.723 | 4 | 13 | P | PostTransitionMetal | 1.81 | 302.91 | 2477.00 | 5.9100 | 1875 |
| 32 | Ge | Germanium | 72.630 | 4 | 14 | P | Metalloid | 2.01 | 1211.40 | 3106.00 | 5.3230 | 1886 |
| 33 | As | Arsenic | 74.922 | 4 | 15 | P | Metalloid | 2.18 | — | — | 5.7270 | — |
| 34 | Se | Selenium | 78.971 | 4 | 16 | P | ReactiveNonmetal | 2.55 | 494.00 | 958.00 | 4.8100 | 1817 |
| 35 | Br | Bromine | 79.904 | 4 | 17 | P | ReactiveNonmetal | 2.96 | 265.80 | 332.00 | 3.1028 | 1826 |
| 36 | Kr | Krypton | 83.798 | 4 | 18 | P | NobleGas | 3.00 | 115.79 | 119.93 | 0.0037 | 1898 |
| 37 | Rb | Rubidium | 85.468 | 5 | 1 | S | AlkaliMetal | 0.82 | 312.46 | 961.00 | 1.5320 | 1861 |
| 38 | Sr | Strontium | 87.620 | 5 | 2 | S | AlkalineEarth | 0.95 | 1050.00 | 1655.00 | 2.6400 | 1790 |
| 39 | Y | Yttrium | 88.906 | 5 | 3 | D | TransitionMetal | 1.22 | 1799.00 | 3609.00 | 4.4720 | 1794 |
| 40 | Zr | Zirconium | 91.224 | 5 | 4 | D | TransitionMetal | 1.33 | 2128.00 | 4682.00 | 6.5200 | 1789 |
| 41 | Nb | Niobium | 92.906 | 5 | 5 | D | TransitionMetal | 1.60 | 2750.00 | 5017.00 | 8.5700 | 1801 |
| 42 | Mo | Molybdenum | 95.950 | 5 | 6 | D | TransitionMetal | 2.16 | 2896.00 | 4912.00 | 10.2800 | 1781 |
| 43 | Tc | Technetium | 98.000 | 5 | 7 | D | TransitionMetal | 1.90 | 2430.00 | 4538.00 | 11.0000 | 1937 |
| 44 | Ru | Ruthenium | 101.070 | 5 | 8 | D | TransitionMetal | 2.20 | 2607.00 | 4423.00 | 12.4500 | 1844 |
| 45 | Rh | Rhodium | 102.910 | 5 | 9 | D | TransitionMetal | 2.28 | 2237.00 | 3968.00 | 12.4100 | 1803 |
| 46 | Pd | Palladium | 106.420 | 5 | 10 | D | TransitionMetal | 2.20 | 1828.05 | 3236.00 | 12.0200 | 1802 |
| 47 | Ag | Silver | 107.870 | 5 | 11 | D | TransitionMetal | 1.93 | 1234.93 | 2435.00 | 10.4900 | — |
| 48 | Cd | Cadmium | 112.410 | 5 | 12 | D | TransitionMetal | 1.69 | 594.22 | 1040.00 | 8.6500 | 1817 |
| 49 | In | Indium | 114.820 | 5 | 13 | P | PostTransitionMetal | 1.78 | 429.75 | 2345.00 | 7.3100 | 1863 |
| 50 | Sn | Tin | 118.710 | 5 | 14 | P | PostTransitionMetal | 1.96 | 505.08 | 2875.00 | 7.2650 | — |
| 51 | Sb | Antimony | 121.760 | 5 | 15 | P | Metalloid | 2.05 | 903.78 | 1860.00 | 6.6970 | — |
| 52 | Te | Tellurium | 127.600 | 5 | 16 | P | Metalloid | 2.10 | 722.66 | 1261.00 | 6.2400 | 1782 |
| 53 | I | Iodine | 126.900 | 5 | 17 | P | ReactiveNonmetal | 2.66 | 386.85 | 457.40 | 4.9330 | 1811 |
| 54 | Xe | Xenon | 131.290 | 5 | 18 | P | NobleGas | 2.60 | 161.40 | 165.03 | 0.0059 | 1898 |
| 55 | Cs | Caesium | 132.910 | 6 | 1 | S | AlkaliMetal | 0.79 | 301.59 | 944.00 | 1.9300 | 1860 |
| 56 | Ba | Barium | 137.330 | 6 | 2 | S | AlkalineEarth | 0.89 | 1000.00 | 2118.00 | 3.5100 | 1808 |
| 57 | La | Lanthanum | 138.910 | 6 | — | F | Lanthanide | 1.10 | 1193.00 | 3737.00 | 6.1450 | 1839 |
| 58 | Ce | Cerium | 140.120 | 6 | — | F | Lanthanide | 1.12 | 1068.00 | 3716.00 | 6.7700 | 1803 |
| 59 | Pr | Praseodymium | 140.910 | 6 | — | F | Lanthanide | 1.13 | 1208.00 | 3403.00 | 6.7700 | 1885 |
| 60 | Nd | Neodymium | 144.240 | 6 | — | F | Lanthanide | 1.14 | 1297.00 | 3347.00 | 7.0100 | 1885 |
| 61 | Pm | Promethium | 145.000 | 6 | — | F | Lanthanide | — | 1315.00 | 3273.00 | 7.2600 | 1945 |
| 62 | Sm | Samarium | 150.360 | 6 | — | F | Lanthanide | 1.17 | 1345.00 | 2067.00 | 7.5200 | 1879 |
| 63 | Eu | Europium | 151.960 | 6 | — | F | Lanthanide | 1.20 | 1099.00 | 1802.00 | 5.2640 | 1901 |
| 64 | Gd | Gadolinium | 157.250 | 6 | — | F | Lanthanide | 1.20 | 1585.00 | 3546.00 | 7.9000 | 1880 |
| 65 | Tb | Terbium | 158.930 | 6 | — | F | Lanthanide | 1.10 | 1629.00 | 3396.00 | 8.2300 | 1843 |
| 66 | Dy | Dysprosium | 162.500 | 6 | — | F | Lanthanide | 1.22 | 1680.00 | 2840.00 | 8.5400 | 1886 |
| 67 | Ho | Holmium | 164.930 | 6 | — | F | Lanthanide | 1.23 | 1734.00 | 2873.00 | 8.7900 | 1878 |
| 68 | Er | Erbium | 167.260 | 6 | — | F | Lanthanide | 1.24 | 1802.00 | 3141.00 | 9.0700 | 1843 |
| 69 | Tm | Thulium | 168.930 | 6 | — | F | Lanthanide | 1.25 | 1818.00 | 2223.00 | 9.3200 | 1879 |
| 70 | Yb | Ytterbium | 173.050 | 6 | — | F | Lanthanide | 1.10 | 1097.00 | 1469.00 | 6.9000 | 1878 |
| 71 | Lu | Lutetium | 174.970 | 6 | — | F | Lanthanide | 1.27 | 1925.00 | 3675.00 | 9.8400 | 1907 |
| 72 | Hf | Hafnium | 178.490 | 6 | 4 | D | TransitionMetal | 1.30 | 2506.00 | 4876.00 | 13.3100 | 1923 |
| 73 | Ta | Tantalum | 180.950 | 6 | 5 | D | TransitionMetal | 1.50 | 3290.00 | 5731.00 | 16.6900 | 1802 |
| 74 | W | Tungsten | 183.840 | 6 | 6 | D | TransitionMetal | 2.36 | 3695.00 | 5828.00 | 19.2500 | 1783 |
| 75 | Re | Rhenium | 186.210 | 6 | 7 | D | TransitionMetal | 1.90 | 3459.00 | 5869.00 | 21.0200 | 1925 |
| 76 | Os | Osmium | 190.230 | 6 | 8 | D | TransitionMetal | 2.20 | 3306.00 | 5285.00 | 22.5900 | 1803 |
| 77 | Ir | Iridium | 192.220 | 6 | 9 | D | TransitionMetal | 2.20 | 2719.00 | 4701.00 | 22.5600 | 1803 |
| 78 | Pt | Platinum | 195.080 | 6 | 10 | D | TransitionMetal | 2.28 | 2041.40 | 4098.00 | 21.4500 | 1735 |
| 79 | Au | Gold | 196.970 | 6 | 11 | D | TransitionMetal | 2.54 | 1337.33 | 3129.00 | 19.3000 | — |
| 80 | Hg | Mercury | 200.590 | 6 | 12 | D | TransitionMetal | 2.00 | 234.32 | 629.88 | 13.5340 | — |
| 81 | Tl | Thallium | 204.380 | 6 | 13 | P | PostTransitionMetal | 1.62 | 577.00 | 1746.00 | 11.8500 | 1861 |
| 82 | Pb | Lead | 207.200 | 6 | 14 | P | PostTransitionMetal | 2.33 | 600.61 | 2022.00 | 11.3400 | — |
| 83 | Bi | Bismuth | 208.980 | 6 | 15 | P | PostTransitionMetal | 2.02 | 544.70 | 1837.00 | 9.7800 | 1753 |
| 84 | Po | Polonium | 209.000 | 6 | 16 | P | PostTransitionMetal | 2.00 | 527.00 | 1235.00 | 9.1960 | 1898 |
| 85 | At | Astatine | 210.000 | 6 | 17 | P | Metalloid | — | — | — | — | 1940 |
| 86 | Rn | Radon | 222.000 | 6 | 18 | P | NobleGas | 2.20 | 202.00 | 211.30 | 0.0097 | 1900 |
| 87 | Fr | Francium | 223.000 | 7 | 1 | S | AlkaliMetal | — | — | — | — | 1939 |
| 88 | Ra | Radium | 226.000 | 7 | 2 | S | AlkalineEarth | 0.90 | 973.00 | 2010.00 | 5.5000 | 1898 |
| 89 | Ac | Actinium | 227.000 | 7 | — | F | Actinide | 1.10 | 1500.00 | 3200.00 | 10.0700 | 1899 |
| 90 | Th | Thorium | 232.040 | 7 | — | F | Actinide | 1.30 | 2023.00 | 5061.00 | 11.7000 | 1829 |
| 91 | Pa | Protactinium | 231.040 | 7 | — | F | Actinide | 1.50 | 1841.00 | 4300.00 | 15.3700 | 1913 |
| 92 | U | Uranium | 238.029 | 7 | — | F | Actinide | 1.38 | 1405.30 | 4404.00 | 19.1000 | 1789 |
| 93 | Np | Neptunium | 237.000 | 7 | — | F | Actinide | 1.36 | 912.00 | 4447.00 | 20.2000 | 1940 |
| 94 | Pu | Plutonium | 244.000 | 7 | — | F | Actinide | 1.28 | 912.50 | 3505.00 | 19.8160 | 1940 |
| 95 | Am | Americium | 243.000 | 7 | — | F | Actinide | 1.30 | 1449.00 | 2880.00 | 12.0000 | 1944 |
| 96 | Cm | Curium | 247.000 | 7 | — | F | Actinide | 1.30 | 1613.00 | 3383.00 | 13.5100 | 1944 |
| 97 | Bk | Berkelium | 247.000 | 7 | — | F | Actinide | 1.30 | 1259.00 | — | 14.7800 | 1949 |
| 98 | Cf | Californium | 251.000 | 7 | — | F | Actinide | 1.30 | 1173.00 | — | 15.1000 | 1950 |
| 99 | Es | Einsteinium | 252.000 | 7 | — | F | Actinide | 1.30 | 1133.00 | — | 8.8400 | 1952 |
| 100 | Fm | Fermium | 257.000 | 7 | — | F | Actinide | — | — | — | — | 1952 |
| 101 | Md | Mendelevium | 258.000 | 7 | — | F | Actinide | — | — | — | — | 1955 |
| 102 | No | Nobelium | 259.000 | 7 | — | F | Actinide | — | — | — | — | — |
| 103 | Lr | Lawrencium | 266.000 | 7 | — | F | Actinide | — | — | — | — | — |
| 104 | Rf | Rutherfordium | 267.000 | 7 | 4 | D | TransitionMetal | — | — | — | — | — |
| 105 | Db | Dubnium | 268.000 | 7 | 5 | D | TransitionMetal | — | — | — | — | — |
| 106 | Sg | Seaborgium | 269.000 | 7 | 6 | D | TransitionMetal | — | — | — | — | 1974 |
| 107 | Bh | Bohrium | 270.000 | 7 | 7 | D | TransitionMetal | — | — | — | — | 1981 |
| 108 | Hs | Hassium | 269.000 | 7 | 8 | D | TransitionMetal | — | — | — | — | 1984 |
| 109 | Mt | Meitnerium | 278.000 | 7 | 9 | D | TransitionMetal | — | — | — | — | 1982 |
| 110 | Ds | Darmstadtium | 281.000 | 7 | 10 | D | TransitionMetal | — | — | — | — | 1994 |
| 111 | Rg | Roentgenium | 282.000 | 7 | 11 | D | TransitionMetal | — | — | — | — | 1994 |
| 112 | Cn | Copernicium | 285.000 | 7 | 12 | D | TransitionMetal | — | — | — | — | 1996 |
| 113 | Nh | Nihonium | 286.000 | 7 | 13 | P | PostTransitionMetal | — | — | — | — | 2004 |
| 114 | Fl | Flerovium | 289.000 | 7 | 14 | P | PostTransitionMetal | — | — | — | — | 1998 |
| 115 | Mc | Moscovium | 290.000 | 7 | 15 | P | PostTransitionMetal | — | — | — | — | 2003 |
| 116 | Lv | Livermorium | 293.000 | 7 | 16 | P | PostTransitionMetal | — | — | — | — | 2000 |
| 117 | Ts | Tennessine | 294.000 | 7 | 17 | P | ReactiveNonmetal | — | — | — | — | 2010 |
| 118 | Og | Oganesson | 294.000 | 7 | 18 | P | NobleGas | — | — | — | — | 2002 |