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More periodic table
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Atomic Number | Element | Symbol | Atomic Weight | Period | Group | Phase | Most Stable Crystal | Type | Ionic Radius | Atomic Radius | Electronegativity | First Ionization Potential | Density | Melting Point (K) | Boiling Point (K) | Isotopes | Discoverer | Year of Discovery | Specific Heat Capacity | Electron Configuration | Display Row | Display Column | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Hydrogen | H | 1.00794 | 1 | 1 | gas | Nonmetal | 0.012 | 0.79 | 2.2 | 13.5984 | 0.00008988 | 14.175 | 20.28 | 3 | Cavendish | 1766 | 14.304 | 1s1 | 1 | 1 | ||
2 | Helium | He | 4.002602 | 1 | 18 | gas | Noble Gas | 0.49 | 24.5874 | 0.0001785 | 4.22 | 5 | Janssen | 1868 | 5.193 | 1s2 | 1 | 18 | |||||
3 | Lithium | Li | 6.941 | 2 | 1 | solid | bcc | Alkali Metal | 0.76 | 2.1 | 0.98 | 5.3917 | 0.534 | 453.85 | 1615 | 5 | Arfvedson | 1817 | 3.582 | [He] 2s1 | 2 | 1 | |
4 | Beryllium | Be | 9.012182 | 2 | 2 | solid | hex | Alkaline Earth Metal | 0.35 | 1.4 | 1.57 | 9.3227 | 1.85 | 1560.15 | 2742 | 6 | Vaulquelin | 1798 | 1.825 | [He] 2s2 | 2 | 2 | |
5 | Boron | B | 10.811 | 2 | 13 | solid | rho | Metalloid | 0.23 | 1.2 | 2.04 | 8.298 | 2.34 | 2573.15 | 4200 | 6 | Gay-Lussac | 1808 | 1.026 | [He] 2s2 2p1 | 2 | 13 | |
6 | Carbon | C | 12.0107 | 2 | 14 | solid | hex | Nonmetal | 0.91 | 2.55 | 11.2603 | 2.267 | 3948.15 | 4300 | 7 | Prehistoric | 0.709 | [He] 2s2 2p2 | 2 | 14 | |||
7 | Nitrogen | N | 14.0067 | 2 | 15 | gas | Nonmetal | 0.13 | 0.75 | 3.04 | 14.5341 | 0.0012506 | 63.29 | 77.36 | 8 | Rutherford | 1772 | 1.04 | [He] 2s2 2p3 | 2 | 15 | ||
8 | Oxygen | O | 15.9994 | 2 | 16 | gas | Nonmetal | 1.4 | 0.65 | 3.44 | 13.6181 | 0.001429 | 50.5 | 90.2 | 8 | Priestley/Scheele | 1774 | 0.918 | [He] 2s2 2p4 | 2 | 16 | ||
9 | Fluorine | F | 18.9984032 | 2 | 17 | gas | Halogen | 1.3 | 0.57 | 3.98 | 17.4228 | 0.001696 | 53.63 | 85.03 | 6 | Moissan | 1886 | 0.824 | [He] 2s2 2p5 | 2 | 17 | ||
10 | Neon | Ne | 20.1797 | 2 | 18 | gas | Noble Gas | 0.51 | 21.5645 | 0.0008999 | 24.703 | 27.07 | 8 | Ramsay and Travers | 1898 | 1.03 | [He] 2s2 2p6 | 2 | 18 | ||||
11 | Sodium | Na | 22.98976928 | 3 | 1 | solid | bcc | Alkali Metal | 1 | 2.2 | 0.93 | 5.1391 | 0.971 | 371.15 | 1156 | 7 | Davy | 1807 | 1.228 | [Ne] 3s1 | 3 | 1 | |
12 | Magnesium | Mg | 24.305 | 3 | 2 | solid | hex | Alkaline Earth Metal | 0.72 | 1.7 | 1.31 | 7.6462 | 1.738 | 923.15 | 1363 | 8 | Black | 1755 | 1.023 | [Ne] 3s2 | 3 | 2 | |
13 | Aluminum | Al | 26.9815386 | 3 | 13 | solid | fcc | Metal | 0.54 | 1.8 | 1.61 | 5.9858 | 2.698 | 933.4 | 2792 | 8 | Wšhler | 1827 | 0.897 | [Ne] 3s2 3p1 | 3 | 13 | |
14 | Silicon | Si | 28.0855 | 3 | 14 | solid | fcc | Metalloid | 0.4 | 1.5 | 1.9 | 8.1517 | 2.3296 | 1683.15 | 3538 | 8 | Berzelius | 1824 | 0.705 | [Ne] 3s2 3p2 | 3 | 14 | |
15 | Phosphorus | P | 30.973762 | 3 | 15 | solid | cub | Nonmetal | 0.38 | 1.2 | 2.19 | 10.4867 | 1.82 | 317.25 | 553 | 7 | BranBrand | 1669 | 0.769 | [Ne] 3s2 3p3 | 3 | 15 | |
16 | Sulfur | S | 32.065 | 3 | 16 | solid | orth | Nonmetal | 0.37 | 1.1 | 2.58 | 10.36 | 2.067 | 388.51 | 717.8 | 10 | Prehistoric | 0.71 | [Ne] 3s2 3p4 | 3 | 16 | ||
17 | Chlorine | Cl | 35.453 | 3 | 17 | gas | Halogen | 1.8 | 0.97 | 3.16 | 12.9676 | 0.003214 | 172.31 | 239.11 | 11 | Scheele | 1774 | 0.479 | [Ne] 3s2 3p5 | 3 | 17 | ||
18 | Argon | Ar | 39.948 | 3 | 18 | gas | Noble Gas | 0.88 | 15.7596 | 0.0017837 | 83.96 | 87.3 | 8 | Rayleigh and Ramsay | 1894 | 0.52 | [Ne] 3s2 3p6 | 3 | 18 | ||||
19 | Potassium | K | 39.0983 | 4 | 1 | solid | bcc | Alkali Metal | 1.4 | 2.8 | 0.82 | 4.3407 | 0.862 | 336.5 | 1032 | 10 | Davy | 1807 | 0.757 | [Ar] 4s1 | 4 | 1 | |
20 | Calcium | Ca | 40.078 | 4 | 2 | solid | fcc | Alkaline Earth Metal | 0.99 | 2.2 | 1 | 6.1132 | 1.54 | 1112.15 | 1757 | 14 | Davy | 1808 | 0.647 | [Ar] 4s2 | 4 | 2 | |
21 | Scandium | Sc | 44.955912 | 4 | 3 | solid | hex | Transition Metal | 0.75 | 2.1 | 1.36 | 6.5615 | 2.989 | 1812.15 | 3109 | 15 | Nilson | 1878 | 0.568 | [Ar] 3d1 4s2 | 4 | 3 | |
22 | Titanium | Ti | 47.867 | 4 | 4 | solid | hex | Transition Metal | 0.61 | 2 | 1.54 | 6.8281 | 4.54 | 1933.15 | 3560 | 9 | Gregor | 1791 | 0.523 | [Ar] 3d2 4s2 | 4 | 4 | |
23 | Vanadium | V | 50.9415 | 4 | 5 | solid | bcc | Transition Metal | 0.59 | 1.9 | 1.63 | 6.7462 | 6.11 | 2175.15 | 3680 | 9 | del Rio | 1801 | 0.489 | [Ar] 3d3 4s2 | 4 | 5 | |
24 | Chromium | Cr | 51.9961 | 4 | 6 | solid | bcc | Transition Metal | 0.52 | 1.9 | 1.66 | 6.7665 | 7.15 | 2130.15 | 2944 | 9 | Vauquelin | 1797 | 0.449 | [Ar] 3d5 4s1 | 4 | 6 | |
25 | Manganese | Mn | 54.938045 | 4 | 7 | solid | bcc | Transition Metal | 0.46 | 1.8 | 1.55 | 7.434 | 7.44 | 1519.15 | 2334 | 11 | Gahn, Scheele | 1774 | 0.479 | [Ar] 3d5 4s2 | 4 | 7 | |
26 | Iron | Fe | 55.845 | 4 | 8 | solid | bcc | Transition Metal | 0.65 | 1.7 | 1.83 | 7.9024 | 7.874 | 1808.15 | 3134 | 10 | Prehistoric | 0.449 | [Ar] 3d6 4s2 | 4 | 8 | ||
27 | Cobalt | Co | 58.933195 | 4 | 9 | solid | hex | Transition Metal | 0.75 | 1.7 | 1.88 | 7.881 | 8.86 | 1768.15 | 3200 | 14 | Brandt | 1735 | 0.421 | [Ar] 3d7 4s2 | 4 | 9 | |
28 | Nickel | Ni | 58.6934 | 4 | 10 | solid | fcc | Transition Metal | 0.69 | 1.6 | 1.91 | 7.6398 | 8.912 | 1726.15 | 3186 | 11 | Cronstedt | 1751 | 0.444 | [Ar] 3d8 4s2 | 4 | 10 | |
29 | Copper | Cu | 63.546 | 4 | 11 | solid | fcc | Transition Metal | 0.73 | 1.6 | 1.9 | 7.7264 | 8.96 | 1357.75 | 2835 | 11 | Prehistoric | 0.385 | [Ar] 3d10 4s1 | 4 | 11 | ||
30 | Zinc | Zn | 65.38 | 4 | 12 | solid | hex | Transition Metal | 0.74 | 1.5 | 1.65 | 9.3942 | 7.134 | 692.88 | 1180 | 15 | Prehistoric | 0.388 | [Ar] 3d10 4s2 | 4 | 12 | ||
31 | Gallium | Ga | 69.723 | 4 | 13 | solid | orth | Metal | 0.62 | 1.8 | 1.81 | 5.9993 | 5.907 | 302.91 | 2477 | 14 | de Boisbaudran | 1875 | 0.371 | [Ar] 3d10 4s2 4p1 | 4 | 13 | |
32 | Germanium | Ge | 72.64 | 4 | 14 | solid | fcc | Metalloid | 0.53 | 1.5 | 2.01 | 7.8994 | 5.323 | 1211.45 | 3106 | 17 | Winkler | 1886 | 0.32 | [Ar] 3d10 4s2 4p2 | 4 | 14 | |
33 | Arsenic | As | 74.9216 | 4 | 15 | solid | rho | Metalloid | 0.58 | 1.3 | 2.18 | 9.7886 | 5.776 | 1090.15 | 887 | 14 | Albertus Magnus | 1250 | 0.329 | [Ar] 3d10 4s2 4p3 | 4 | 15 | |
34 | Selenium | Se | 78.96 | 4 | 16 | solid | hex | Nonmetal | 0.5 | 1.2 | 2.55 | 9.7524 | 4.809 | 494.15 | 958 | 20 | Berzelius | 1817 | 0.321 | [Ar] 3d10 4s2 4p4 | 4 | 16 | |
35 | Bromine | Br | 79.904 | 4 | 17 | liq | Halogen | 2 | 1.1 | 2.96 | 11.8138 | 3.122 | 266.05 | 332 | 19 | Balard | 1826 | 0.474 | [Ar] 3d10 4s2 4p5 | 4 | 17 | ||
36 | Krypton | Kr | 83.798 | 4 | 18 | gas | Noble Gas | 1 | 13.9996 | 0.003733 | 115.93 | 119.93 | 23 | Ramsay and Travers | 1898 | 0.248 | [Ar] 3d10 4s2 4p6 | 4 | 18 | ||||
37 | Rubidium | Rb | 85.4678 | 5 | 1 | solid | bcc | Alkali Metal | 1.5 | 3 | 0.82 | 4.1771 | 1.532 | 312.79 | 961 | 20 | Bunsen and Kirchoff | 1861 | 0.363 | [Kr] 5s1 | 5 | 1 | |
38 | Strontium | Sr | 87.62 | 5 | 2 | solid | fcc | Alkaline Earth Metal | 1.1 | 2.5 | 0.95 | 5.6949 | 2.64 | 1042.15 | 1655 | 18 | Davy | 1808 | 0.301 | [Kr] 5s2 | 5 | 2 | |
39 | Yttrium | Y | 88.90585 | 5 | 3 | solid | hex | Transition Metal | 0.9 | 2.3 | 1.22 | 6.2173 | 4.469 | 1799.15 | 3609 | 21 | Gadolin | 1794 | 0.298 | [Kr] 4d1 5s2 | 5 | 3 | |
40 | Zirconium | Zr | 91.224 | 5 | 4 | solid | hex | Transition Metal | 0.72 | 2.2 | 1.33 | 6.6339 | 6.506 | 2125.15 | 4682 | 20 | Klaproth | 1789 | 0.278 | [Kr] 4d2 5s2 | 5 | 4 | |
41 | Niobium | Nb | 92.90638 | 5 | 5 | solid | bcc | Transition Metal | 0.69 | 2.1 | 1.6 | 6.7589 | 8.57 | 2741.15 | 5017 | 24 | Hatchett | 1801 | 0.265 | [Kr] 4d4 5s1 | 5 | 5 | |
42 | Molybdenum | Mo | 95.96 | 5 | 6 | solid | bcc | Transition Metal | 0.65 | 2 | 2.16 | 7.0924 | 10.22 | 2890.15 | 4912 | 20 | Scheele | 1778 | 0.251 | [Kr] 4d5 5s1 | 5 | 6 | |
43 | Technetium | Tc | 98 | 5 | 7 | artificial | hex | Transition Metal | 0.56 | 2 | 1.9 | 7.28 | 11.5 | 2473.15 | 5150 | 23 | Perrier and SegrŽ | 1937 | [Kr] 4d5 5s2 | 5 | 7 | ||
44 | Ruthenium | Ru | 101.07 | 5 | 8 | solid | hex | Transition Metal | 0.68 | 1.9 | 2.2 | 7.3605 | 12.37 | 2523.15 | 4423 | 16 | Klaus | 1844 | 0.238 | [Kr] 4d7 5s1 | 5 | 8 | |
45 | Rhodium | Rh | 102.9055 | 5 | 9 | solid | fcc | Transition Metal | 0.68 | 1.8 | 2.28 | 7.4589 | 12.41 | 2239.15 | 3968 | 20 | Wollaston | 1803 | 0.243 | [Kr] 4d8 5s1 | 5 | 9 | |
46 | Palladium | Pd | 106.42 | 5 | 10 | solid | fcc | Transition Metal | 0.86 | 1.8 | 2.2 | 8.3369 | 12.02 | 1825.15 | 3236 | 21 | Wollaston | 1803 | 0.244 | [Kr] 4d10 | 5 | 10 | |
47 | Silver | Ag | 107.8682 | 5 | 11 | solid | fcc | Transition Metal | 1.3 | 1.8 | 1.93 | 7.5762 | 10.501 | 1234.15 | 2435 | 27 | Prehistoric | 0.235 | [Kr] 4d10 5s1 | 5 | 11 | ||
48 | Cadmium | Cd | 112.411 | 5 | 12 | solid | hex | Transition Metal | 0.97 | 1.7 | 1.69 | 8.9938 | 8.69 | 594.33 | 1040 | 22 | Stromeyer | 1817 | 0.232 | [Kr] 4d10 5s2 | 5 | 12 | |
49 | Indium | In | 114.818 | 5 | 13 | solid | tet | Metal | 0.8 | 2 | 1.78 | 5.7864 | 7.31 | 429.91 | 2345 | 34 | Reich and Richter | 1863 | 0.233 | [Kr] 4d10 5s2 5p1 | 5 | 13 | |
50 | Tin | Sn | 118.71 | 5 | 14 | solid | tet | Metal | 0.69 | 1.7 | 1.96 | 7.3439 | 7.287 | 505.21 | 2875 | 28 | Prehistoric | 0.228 | [Kr] 4d10 5s2 5p2 | 5 | 14 | ||
51 | Antimony | Sb | 121.76 | 5 | 15 | solid | rho | Metalloid | 0.76 | 1.5 | 2.05 | 8.6084 | 6.685 | 904.05 | 1860 | 29 | Early historic times | 0.207 | [Kr] 4d10 5s2 5p3 | 5 | 15 | ||
52 | Tellurium | Te | 127.6 | 5 | 16 | solid | hex | Metalloid | 0.97 | 1.4 | 2.1 | 9.0096 | 6.232 | 722.8 | 1261 | 29 | von Reichenstein | 1782 | 0.202 | [Kr] 4d10 5s2 5p4 | 5 | 16 | |
53 | Iodine | I | 126.90447 | 5 | 17 | solid | orth | Halogen | 2.2 | 1.3 | 2.66 | 10.4513 | 4.93 | 386.65 | 457.4 | 24 | Courtois | 1811 | 0.214 | [Kr] 4d10 5s2 5p5 | 5 | 17 | |
54 | Xenon | Xe | 131.293 | 5 | 18 | gas | gas | Noble Gas | 1.2 | 12.1298 | 0.005887 | 161.45 | 165.03 | 31 | Ramsay and Travers | 1898 | 0.158 | [Kr] 4d10 5s2 5p6 | 5 | 18 | |||
55 | Cesium | Cs | 132.9054519 | 6 | 1 | solid | Alkali Metal | 1.7 | 3.3 | 0.79 | 3.8939 | 1.873 | 301.7 | 944 | 22 | Bunsen and Kirchoff | 1860 | 0.242 | [Xe] 6s1 | 6 | 1 | ||
56 | Barium | Ba | 137.327 | 6 | 2 | solid | bcc | Alkaline Earth Metal | 1.4 | 2.8 | 0.89 | 5.2117 | 3.594 | 1002.15 | 2170 | 25 | Davy | 1808 | 0.204 | [Xe] 6s2 | 6 | 2 | |
57 | Lanthanum | La | 138.90547 | 6 | 3 | solid | hex | Lanthanide | 1.1 | 2.7 | 1.1 | 5.5769 | 6.145 | 1193.15 | 3737 | 19 | Mosander | 1839 | 0.195 | [Xe] 5d1 6s2 | 8 | 3 | |
58 | Cerium | Ce | 140.116 | 6 | 19 | solid | fcc | Lanthanide | 1 | 2.7 | 1.12 | 5.5387 | 6.77 | 1071.15 | 3716 | 19 | Berzelius | 1803 | 0.192 | [Xe] 4f1 5d1 6s2 | 8 | 4 | |
59 | Praseodymium | Pr | 140.90765 | 6 | 20 | solid | hex | Lanthanide | 1 | 2.7 | 1.13 | 5.473 | 6.773 | 1204.15 | 3793 | 15 | von Welsbach | 1885 | 0.193 | [Xe] 4f3 6s2 | 8 | 5 | |
60 | Neodymium | Nd | 144.242 | 6 | 21 | solid | hex | Lanthanide | 1 | 2.6 | 1.14 | 5.525 | 7.007 | 1289.15 | 3347 | 16 | von Welsbach | 1885 | 0.19 | [Xe] 4f4 6s2 | 8 | 6 | |
61 | Promethium | Pm | 145 | 6 | 22 | artificial | hex | Lanthanide | 0.98 | 2.6 | 1.13 | 5.582 | 7.26 | 1204.15 | 3273 | 14 | Marinsky et al. | 1945 | [Xe] 4f5 6s2 | 8 | 7 | ||
62 | Samarium | Sm | 150.36 | 6 | 23 | solid | hex | Lanthanide | 0.96 | 2.6 | 1.17 | 5.6437 | 7.52 | 1345.15 | 2067 | 17 | Boisbaudran | 1879 | 0.197 | [Xe] 4f6 6s2 | 8 | 8 | |
63 | Europium | Eu | 151.964 | 6 | 24 | solid | bcc | Lanthanide | 0.95 | 2.6 | 1.2 | 5.6704 | 5.243 | 1095.15 | 1802 | 21 | Demarcay | 1901 | 0.182 | [Xe] 4f7 6s2 | 8 | 9 | |
64 | Gadolinium | Gd | 157.25 | 6 | 25 | solid | hex | Lanthanide | 0.94 | 2.5 | 1.2 | 6.1501 | 7.895 | 1585.15 | 3546 | 17 | de Marignac | 1880 | 0.236 | [Xe] 4f7 5d1 6s2 | 8 | 10 | |
65 | Terbium | Tb | 158.92535 | 6 | 26 | solid | hex | Lanthanide | 0.92 | 2.5 | 1.2 | 5.8638 | 8.229 | 1630.15 | 3503 | 24 | Mosander | 1843 | 0.182 | [Xe] 4f9 6s2 | 8 | 11 | |
66 | Dysprosium | Dy | 162.5 | 6 | 27 | solid | hex | Lanthanide | 0.91 | 2.5 | 1.22 | 5.9389 | 8.55 | 1680.15 | 2840 | 21 | de Boisbaudran | 1886 | 0.17 | [Xe] 4f10 6s2 | 8 | 12 | |
67 | Holmium | Ho | 164.93032 | 6 | 28 | solid | hex | Lanthanide | 0.9 | 2.5 | 1.23 | 6.0215 | 8.795 | 1743.15 | 2993 | 29 | Delafontaine and Soret | 1878 | 0.165 | [Xe] 4f11 6s2 | 8 | 13 | |
68 | Erbium | Er | 167.259 | 6 | 29 | solid | hex | Lanthanide | 0.88 | 2.5 | 1.24 | 6.1077 | 9.066 | 1795.15 | 3503 | 16 | Mosander | 1843 | 0.168 | [Xe] 4f12 6s2 | 8 | 14 | |
69 | Thulium | Tm | 168.93421 | 6 | 30 | solid | hex | Lanthanide | 0.87 | 2.4 | 1.25 | 6.1843 | 9.321 | 1818.15 | 2223 | 18 | Cleve | 1879 | 0.16 | [Xe] 4f13 6s2 | 8 | 15 | |
70 | Ytterbium | Yb | 173.054 | 6 | 31 | solid | fcc | Lanthanide | 0.86 | 2.4 | 1.1 | 6.2542 | 6.965 | 1097.15 | 1469 | 16 | Marignac | 1878 | 0.155 | [Xe] 4f14 6s2 | 8 | 16 | |
71 | Lutetium | Lu | 174.9668 | 6 | 32 | solid | hex | Lanthanide | 0.85 | 2.3 | 1.27 | 5.4259 | 9.84 | 1936.15 | 3675 | 22 | Urbain/ von Welsbach | 1907 | 0.154 | [Xe] 4f14 5d1 6s2 | 8 | 17 | |
72 | Hafnium | Hf | 178.49 | 6 | 4 | solid | hex | Transition Metal | 0.71 | 2.2 | 1.3 | 6.8251 | 13.31 | 2500.15 | 4876 | 17 | Coster and von Hevesy | 1923 | 0.144 | [Xe] 4f14 5d2 6s2 | 6 | 4 | |
73 | Tantalum | Ta | 180.94788 | 6 | 5 | solid | bcc | Transition Metal | 0.64 | 2.1 | 1.5 | 7.5496 | 16.654 | 3269.15 | 5731 | 19 | Ekeberg | 1801 | 0.14 | [Xe] 4f14 5d3 6s2 | 6 | 5 | |
74 | Wolfram | W | 183.84 | 6 | 6 | solid | bcc | Transition Metal | 0.62 | 2 | 2.36 | 7.864 | 19.25 | 3680.15 | 5828 | 22 | J. and F. d'Elhuyar | 1783 | 0.132 | [Xe] 4f14 5d4 6s2 | 6 | 6 | |
75 | Rhenium | Re | 186.207 | 6 | 7 | solid | hex | Transition Metal | 0.56 | 2 | 1.9 | 7.8335 | 21.02 | 3453.15 | 5869 | 21 | Noddack, Berg, and Tacke | 1925 | 0.137 | [Xe] 4f14 5d5 6s2 | 6 | 7 | |
76 | Osmium | Os | 190.23 | 6 | 8 | solid | hex | Transition Metal | 0.63 | 1.9 | 2.2 | 8.4382 | 22.61 | 3300.15 | 5285 | 19 | Tennant | 1803 | 0.13 | [Xe] 4f14 5d6 6s2 | 6 | 8 | |
77 | Iridium | Ir | 192.217 | 6 | 9 | solid | fcc | Transition Metal | 0.63 | 1.9 | 2.2 | 8.967 | 22.56 | 2716.15 | 4701 | 25 | Tennant | 1804 | 0.131 | [Xe] 4f14 5d7 6s2 | 6 | 9 | |
78 | Platinum | Pt | 195.084 | 6 | 10 | solid | fcc | Transition Metal | 0.63 | 1.8 | 2.28 | 8.9587 | 21.46 | 2045.15 | 4098 | 32 | Ulloa/Wood | 1735 | 0.133 | [Xe] 4f14 5d9 6s1 | 6 | 10 | |
79 | Gold | Au | 196.966569 | 6 | 11 | solid | fcc | Transition Metal | 0.85 | 1.8 | 2.54 | 9.2255 | 19.282 | 1337.73 | 3129 | 21 | Prehistoric | 0.129 | [Xe] 4f14 5d10 6s1 | 6 | 11 | ||
80 | Mercury | Hg | 200.59 | 6 | 12 | liq | Transition Metal | 1 | 1.8 | 2 | 10.4375 | 13.5336 | 234.43 | 630 | 26 | Prehistoric | 0.14 | [Xe] 4f14 5d10 6s2 | 6 | 12 | |||
81 | Thallium | Tl | 204.3833 | 6 | 13 | solid | hex | Metal | 1.5 | 2.1 | 2.04 | 6.1082 | 11.85 | 577.15 | 1746 | 28 | Crookes | 1861 | 0.129 | [Xe] 4f14 5d10 6s2 6p1 | 6 | 13 | |
82 | Lead | Pb | 207.2 | 6 | 14 | solid | fcc | Metal | 1.2 | 1.8 | 2.33 | 7.4167 | 11.342 | 600.75 | 2022 | 29 | Prehistoric | 0.129 | [Xe] 4f14 5d10 6s2 6p2 | 6 | 14 | ||
83 | Bismuth | Bi | 208.9804 | 6 | 15 | solid | rho | Metal | 1 | 1.6 | 2.02 | 7.2856 | 9.807 | 544.67 | 1837 | 19 | Geoffroy the Younger | 1753 | 0.122 | [Xe] 4f14 5d10 6s2 6p3 | 6 | 15 | |
84 | Polonium | Po | 210 | 6 | 16 | solid | cub | Metalloid | 2.3 | 1.5 | 2 | 8.417 | 9.32 | 527.15 | 1235 | 34 | Curie | 1898 | [Xe] 4f14 5d10 6s2 6p4 | 6 | 16 | ||
85 | Astatine | At | 210 | 6 | 17 | solid | Noble Gas | 1.4 | 2.2 | 9.3 | 7 | 575.15 | 610 | 21 | Corson et al. | 1940 | [Xe] 4f14 5d10 6s2 6p5 | 6 | 17 | ||||
86 | Radon | Rn | 222 | 6 | 18 | gas | Alkali Metal | 1.3 | 10.7485 | 0.00973 | 202.15 | 211.3 | 20 | Dorn | 1900 | 0.094 | [Xe] 4f14 5d10 6s2 6p6 | 6 | 18 | ||||
87 | Francium | Fr | 223 | 7 | 1 | solid | bcc | Alkaline Earth Metal | 1.8 | 0.7 | 4.0727 | 1.87 | 300.15 | 950 | 21 | Perey | 1939 | [Rn] 7s1 | 7 | 1 | |||
88 | Radium | Ra | 226 | 7 | 2 | solid | bcc | Actinide | 1.4 | 0.9 | 5.2784 | 5.5 | 973.15 | 2010 | 15 | Pierre and Marie Curie | 1898 | [Rn] 7s2 | 7 | 2 | |||
89 | Actinium | Ac | 227 | 7 | 3 | solid | fcc | Actinide | 1.1 | 1.1 | 5.17 | 10.07 | 1323.15 | 3471 | 11 | Debierne/Giesel | 1899 | 0.12 | [Rn] 6d1 7s2 | 9 | 3 | ||
90 | Thorium | Th | 232.03806 | 7 | 19 | solid | fcc | Actinide | 0.97 | 1.3 | 6.3067 | 11.72 | 2028.15 | 5061 | 12 | Berzelius | 1828 | 0.113 | [Rn] 6d2 7s2 | 9 | 4 | ||
91 | Protactinium | Pa | 231.03588 | 7 | 20 | solid | orth | Actinide | 0.78 | 1.5 | 5.89 | 15.37 | 1873.15 | 4300 | 14 | Hahn and Meitner | 1917 | [Rn] 5f2 6d1 7s2 | 9 | 5 | |||
92 | Uranium | U | 238.02891 | 7 | 21 | solid | orth | Actinide | 0.52 | 1.38 | 6.1941 | 18.95 | 1405.15 | 4404 | 15 | Peligot | 1841 | 0.116 | [Rn] 5f3 6d1 7s2 | 9 | 6 | ||
93 | Neptunium | Np | 237 | 7 | 22 | artificial | orth | Actinide | 0.75 | 1.36 | 6.2657 | 20.45 | 913.15 | 4273 | 153 | McMillan and Abelson | 1940 | [Rn] 5f4 6d1 7s2 | 9 | 7 | |||
94 | Plutonium | Pu | 244 | 7 | 23 | artificial | mno | Actinide | 0.89 | 1.28 | 6.0262 | 19.84 | 913.15 | 3501 | 163 | Seaborg et al. | 1940 | [Rn] 5f6 7s2 | 9 | 8 | |||
95 | Americium | Am | 243 | 7 | 24 | artificial | hex | Actinide | 0.98 | 1.3 | 5.9738 | 13.69 | 1267.15 | 2880 | 133 | Seaborg et al. | 1944 | [Rn] 5f7 7s2 | 9 | 9 | |||
96 | Curium | Cm | 247 | 7 | 25 | artificial | hex | Actinide | 0.97 | 1.3 | 5.9915 | 13.51 | 1340.15 | 3383 | 133 | Seaborg et al. | 1944 | 9 | 10 | ||||
97 | Berkelium | Bk | 247 | 7 | 26 | artificial | hex | Actinide | 0.95 | 1.3 | 6.1979 | 14.79 | 1259.15 | 983 | 83 | Seaborg et al. | 1949 | 9 | 11 | ||||
98 | Californium | Cf | 251 | 7 | 27 | artificial | hex | Actinide | 0.93 | 1.3 | 6.2817 | 15.1 | 1925.15 | 1173 | 123 | Seaborg et al. | 1950 | 9 | 12 | ||||
99 | Einsteinium | Es | 252 | 7 | 28 | artificial | hex | Actinide | 1.3 | 6.42 | 13.5 | 1133.15 | 123 | Ghiorso et al. | 1952 | 9 | 13 | ||||||
100 | Fermium | Fm | 257 | 7 | 29 | artificial | Actinide | 1.3 | 6.5 | 103 | Ghiorso et al. | 1953 | 9 | 14 | |||||||||
101 | Mendelevium | Md | 258 | 7 | 30 | artificial | Actinide | 1.3 | 6.58 | 33 | Ghiorso et al. | 1955 | 9 | 15 | |||||||||
102 | Nobelium | No | 259 | 7 | 31 | artificial | Actinide | 1.3 | 6.65 | 73 | Ghiorso et al. | 1958 | 9 | 16 | |||||||||
103 | Lawrencium | Lr | 262 | 7 | 32 | artificial | Actinide | 203 | Ghiorso et al. | 1961 | 9 | 17 | |||||||||||
104 | Rutherfordium | Rf | 261 | 7 | 4 | artificial | Transactinide | 18.1 | Ghiorso et al. | 1969 | 7 | 4 | |||||||||||
105 | Dubnium | Db | 262 | 7 | 5 | artificial | Transactinide | 39 | Ghiorso et al. | 1970 | 7 | 5 | |||||||||||
106 | Seaborgium | Sg | 266 | 7 | 6 | artificial | Transactinide | 35 | Ghiorso et al. | 1974 | 7 | 6 | |||||||||||
107 | Bohrium | Bh | 264 | 7 | 7 | artificial | Transactinide | 37 | Armbruster and MŸnzenberg | 1981 | 7 | 7 | |||||||||||
108 | Hassium | Hs | 267 | 7 | 8 | artificial | Transactinide | 41 | Armbruster and MŸnzenberg | 1983 | 7 | 8 | |||||||||||
109 | Meitnerium | Mt | 268 | 7 | 9 | artificial | Transactinide | 35 | GSI, Darmstadt, West Germany | 1982 | 7 | 9 | |||||||||||
110 | Darmstadtium | Ds | 271 | 7 | 10 | artificial | Transactinide | 7 | 10 | ||||||||||||||
111 | Roentgenium | Rg | 272 | 7 | 11 | artificial | Transactinide | 7 | 11 | ||||||||||||||
112 | Copernicium | Cn | 285 | 7 | 12 | artificial | Transactinide | 7 | 12 | ||||||||||||||
113 | Ununtrium | Uut | 284 | 7 | 13 | artificial | 7 | 13 | |||||||||||||||
114 | Ununquadium | Uuq | 289 | 7 | 14 | artificial | Transactinide | 7 | 14 | ||||||||||||||
115 | Ununpentium | Uup | 288 | 7 | 15 | artificial | 7 | 15 | |||||||||||||||
116 | Ununhexium | Uuh | 292 | 7 | 16 | artificial | Transactinide | 7 | 16 | ||||||||||||||
117 | Ununseptium | Uus | 295 | 7 | 17 | artificial | 7 | 17 | |||||||||||||||
118 | Ununoctium | Uuo | 294 | 7 | 18 | artificial | Noble Gas | 7 | 18 |
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