| Atomic No | Name | Symbol | Atomic Weight |
Fire Frequency |
M.P. (°C) |
B.P. (°C) |
Density (g/cm3) |
Electron configuration |
Ionization energy (eV) |
Electronegativity | Valence | Description Hardness |
Group | Earth crust (%) |
Discovery Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 001 | Hydrogen | H | 1.0079 | -259.0 | -253.0 | 0.0899 | 1s1 | 13.5984 | 2.2 | 1, 0, -1 | gas | 1 | 0.14 | 1776 | |
| 002 | Helium | He | 4.0026 | -272.0 | -269.0 | 0.1785 | 1s2 | 24.5874 | ? |
0 | noble gas | 18 | 1895 | ||
| 003 | Lithium | Li | 6.941 | 180.0 | 1,347.00 | 0.53 | [He] 2s1 | 5.3917 | 0.98 | 1,-1 | 0.6 |
1 | 1817 | ||
| 004 | Beryllium | Be | 9.0122 | 1,278.00 | 2,970.00 | 1.85 | [He] 2s2 | 9.3227 | 1.57 | 2 | 5.5 |
2 | 1797 | ||
| 005 | Boron | B | 10.811 | 2,300.00 | 2,550.00 | 2.34 | [He] 2s2 2p1 | 8.298 | 2.04 | 3,2,1 | 9.3 |
13 | 1808 | ||
| 006 | Carbon | C | 12.0107 | 3,500.00 | 4,827.00 | 2.26 | [He] 2s2 2p2 | 11.2603 | 2.55 | 4,3,2,1,-1,-2,-4 | 10.0 (diamond) & 1-2 (graphite) | 14 | 0.09 | 1694 ~ | |
| 007 | Nitrogen | N | 14.0067 | -210.0 | -196.0 | 1.25 | [He] 2s2 2p3 | 14.5341 | 3.04 | 5,4,3,2,1,0,-1,-2,-3 | gas | 15 | 1772 | ||
| 008 | Oxygen | O | 15.9994 | -218.0 | -183.0 | 1.43 | [He] 2s2 2p4 | 13.6181 | 3.44 | 2,1,0,-1,-2 | gas | 16 | 46.71 | 1774 | |
| 009 | Fluorine | F | 18.9984 | -220.0 | -188.0 | 1.7 | [He] 2s2 2p5 | 17.4228 | 3.98 | 0,-1 | halogen gas | 17 | 0.03 | 1886 | |
| 010 | Neon | Ne | 20.1797 | -249.0 | -246.0 | 0.9 | [He] 2s2 2p6 | 21.5645 | ? |
0 | noble gas | 18 | 1898 | ||
| 011 | Sodium | Na | 22.9897 | 98.0 | 883.0 | 0.97 | [Ne] 3s1 | 5.1391 | 0.93 | 1, -1 | 0.5 |
1 | 2.75 | 1807 | |
| 012 | Magnesium | Mg | 24.305 | 639.0 | 1,090.00 | 1.74 | [Ne] 3s2 | 7.6462 | 1.31 | 2 | 2.5 |
2 | 2.08 | 1755 | |
| 013 | Aluminum | Al | 26.9815 | 660.0 | 2,467.00 | 2.7 | [Ne] 3s2 3p1 | 5.9858 | 1.61 | 3, 1 |
2.75 |
13 | 8.07 | 1825 | |
| 014 | Silicon | Si | 28.0855 | 1,410.00 | 2,355.00 | 2.33 | [Ne] 3s2 3p2 | 8.1517 | 1.90 | 4,3,2,1, -1,-2,-4 |
6.5 metalloid |
14 | 27.69 | 1824 | |
| 015 | Phosphorus | P | 30.9738 | 44.0 | 280.0 | 1.82 | [Ne] 3s2 3p3 | 10.4867 | 2.19 | 5, 4, 3, 2, 1, 0, -1, -2, -3 |
nonmetal | 15 | 0.13 | 1669 | |
| 016 | Sulfur | S | 32.065 | 113.0 | 445.0 | 2.07 | [Ne] 3s2 3p4 | 10.36 | 2.58 | 6,5,4,3,2,1, 0, -1,-2 |
2.0 |
16 | 0.05 | 500 BC | |
| 017 | Chlorine | Cl | 35.453 | -101.0 | -35.0 | 3.21 | [Ne] 3s2 3p5 | 12.9676 | 3.16 | 6,5,4,3,2,1, 0,-1,-2 |
halogen gas |
17 | 0.05 | 1774 | |
| 018 | Argon | Ar | 39.948 | -189.0 | -186.0 | 1.78 | [Ne] 3s2 3p6 | 15.7596 | ? |
0 |
noble gas |
18 | 1894 | ||
| 019 | Potassium | K | 39.0983 | 64.0 | 774.0 | 0.86 | [Ar] 4s1 | 4.3407 | 0.82 | 1, -1 |
0.4 |
1 | 2.58 | 1807 | |
| 020 | Calcium | Ca | 40.078 | 839.0 | 1,484.00 | 1.55 | [Ar] 4s2 | 6.1132 | 1.00 | 2 |
1.75 |
2 | 3.65 | 1808 | |
| 021 | Scandium | Sc | 44.9559 | 1,539.00 | 2,832.00 | 2.99 | [Ar] 3d1 4s2 | 6.5615 | 1.36 | 3,2,1 |
transition metal |
3 | 1879 | ||
| 022 | Titanium | Ti | 47.867 | 1,660.00 | 3,287.00 | 4.54 | [Ar] 3d2 4s2 | 6.8281 | 1.54 | 4,3,2,0, -1,-2 |
6.0 |
4 | 0.62 | 1791 | |
| 023 | Vanadium | V | 50.9415 | 1,890.00 | 3,380.00 | 6.11 | [Ar] 3d3 4s2 | 6.7462 | 1.63 | 5,4,3,2,1,0,-1, -2 |
7.0 |
5 | 1830 | ||
| 024 | Chromium | Cr | 51.9961 | 1,857.00 | 2,672.00 | 7.19 | [Ar] 3d5 4s1 | 6.7665 | 1.66 | 6,5,4,3,2,1,0,-1, -2,-3,-4 |
8.5 |
6 | 0.04 | 1797 | |
| 025 | Manganese | Mn | 54.938 | 1,245.00 | 1,962.00 | 7.43 | [Ar] 3d5 4s2 | 7.434 | 1.55 | 7, 6, 5, 4, 3, 2, 1, 0, -1, -2, -3 |
6.0 |
7 | 0.09 | 1774 | |
| 026 | Iron | Fe | 55.845 | 1,535.00 | 2,750.00 | 7.87 | [Ar] 3d6 4s2 | 7.9024 | 1.83 | 6,5,4,3,2,1,0,-1,-2 |
metal |
8 | 5.05 | 2000 BC | |
| 027 | Cobalt | Co | 58.9332 | 1,495.00 | 2,870.00 | 8.9 | [Ar] 3d7 4s2 | 7.881 | 1.88 | 5, 4, 3, 2, 1, 0, -1 |
9 | 1735 | |||
| 028 | Nickel | Ni | 58.6934 | 1,453.00 | 2,732.00 | 8.9 | [Ar] 3d8 4s2 | 7.6398 | 1.91 | 6, 4, 3, 2, 1, 0, -1 |
10 | 0.02 | 1751 | ||
| 029 | Copper | Cu | 63.546 | 1,083.00 | 2,567.00 | 8.96 | [Ar] 3d10 4s1 | 7.7264 | 1.90 | 4,3,2, 1,0 |
11 | 8000 BC | |||
| 030 | Zinc | Zn | 65.39 | 420.0 | 907.0 | 7.13 | [Ar] 3d10 4s2 | 9.3942 | 1.65 | 2, 1, 0 |
2.5 |
12 | 1500< | ||
| 031 | Gallium | Ga | 69.723 | 30.0 | 2,403.00 | 5.91 | [Ar] 3d10 4s2 4p1 | 5.9993 | 1.81 | 3, 2, 1 |
1.5 |
13 | 1875 | ||
| 032 | Germanium | Ge | 72.64 | 937.0 | 2,830.00 | 5.32 | [Ar] 3d10 4s2 4p2 | 7.8994 | 2.01 | 4, 3, 2, 1 |
6.0 |
14 | 1886 | ||
| 033 | Arsenic | As | 74.9216 | 81.0 | 613.0 | 5.72 | [Ar] 3d10 4s2 4p3 | 9.7886 | 2.18 | 5, 3, 2, -3 | 3.5 |
15 | 1250 | ||
| 034 | Selenium | Se | 78.96 | 217.0 | 685.0 | 4.79 | [Ar] 3d10 4s2 4p4 | 9.7524 | 2.55 | 6, 4, 2, 1, -2 | 2.0 |
16 | 1817 | ||
| 035 | Bromine | Br | 79.904 | -7.0 | 59.0 | 3.12 | [Ar] 3d10 4s2 4p5 | 11.8138 | 2.96 | 7,5,4,3,1,0,-1 |
halogen |
17 | 1826 | ||
| 036 | Krypton | Kr | 83.8 | -157.0 | -153.0 | 3.75 | [Ar] 3d10 4s2 4p6 | 13.9996 | 3.00 | 2, 0 |
noble gas |
18 | 1898 | ||
| 037 | Rubidium | Rb | 85.4678 | 39.0 | 688.0 | 1.63 | [Kr] 5s1 | 4.1771 | 0.82 | 1, -1 |
0.3 |
1 | 1861 | ||
| 038 | Strontium | Sr | 87.62 | 769.0 | 1,384.00 | 2.54 | [Kr] 5s2 | 5.6949 | 0.95 | 2 |
1.5 |
2 | 1790 | ||
| 039 | Yttrium | Y | 88.9059 | 1,523.00 | 3,337.00 | 4.47 | [Kr] 4d1 5s2 | 6.2173 | 1.22 | 3, 2 |
transition metal |
3 | 1794 | ||
| 040 | Zirconium | Zr | 91.224 | 1,852.00 | 4,377.00 | 6.51 | [Kr] 4d2 5s2 | 6.6339 | 1.33 | 4,3,2,1,0,-2 |
5.0 |
4 | 0.03 | 1789 | |
| 041 | Niobium | Nb | 92.9064 | 2,468.00 | 4,927.00 | 8.57 | [Kr] 4d4 5s1 | 6.7589 | 1.6 | 5,4,3,2,1, 0,-1,-3 |
5 | 1801 | |||
| 042 | Molybdenum | Mo | 95.94 | 2,617.00 | 4,612.00 | 10.22 | [Kr] 4d5 5s1 | 7.0924 | 2.16 | 6,5,4,3,2,1, 0,-1,-2 |
6 | 1781 | |||
| 043 | Technetium | Tc | 98.0 | 2,200.00 | 4,877.00 | 11.5 | [Kr] 4d5 5s2 | 7.28 | 1.9 | 7,6,5,4,3,2,1, 0,-1,-3 |
7 | 1937 | |||
| 044 | Ruthenium | Ru | 101.07 | 2,250.00 | 3,900.00 | 12.37 | [Kr] 4d7 5s1 | 7.3605 | 2.2 | 8,7,6,5,4,3,2,1, 0,-2 |
8 | 1844 | |||
| 045 | Rhodium | Rh | 102.9055 | 1,966.00 | 3,727.00 | 12.41 | [Kr] 4d8 5s1 | 7.4589 | 2.28 | 6,5,4,3,2,1, 0,-1 |
9 | 1803 | |||
| 046 | Palladium | Pd | 106.42 | 1,552.00 | 2,927.00 | 12.02 | [Kr] 4d10 | 8.3369 | 2.20 | 4, 2, 0 |
10 | 1803 | |||
| 047 | Silver | Ag | 107.8682 | 962.0 | 2,212.00 | 10.5 | [Kr] 4d10 5s1 | 7.5762 | 1.93 | 3, 2, 1, 0 |
11 | 3000 BC | |||
| 048 | Cadmium | Cd | 112.411 | 321.0 | 765.0 | 8.65 | [Kr] 4d10 5s2 | 8.9938 | 1.69 | 2, 1 |
12 | 1817 | |||
| 049 | Indium | In | 114.818 | 157.0 | 2,000.00 | 7.31 | [Kr] 4d10 5s2 5p1 | 5.7864 | 1.78 | 3, 2, 1 |
soft metal |
13 | 1863 | ||
| 050 | Tin | Sn | 118.71 | 232.0 | 2,270.00 | 7.31 | [Kr] 4d10 5s2 5p2 | 7.3439 | 1.96 | 4, 2, -4 |
1.5 soft metal |
14 | 3000 BC | ||
| 051 | Antimony | Sb | 121.76 | 630.0 | 1,750.00 | 6.68 | [Kr] 4d10 5s2 5p3 | 8.6084 | 2.05 | 5, 3, -3 |
3.0 |
15 | 3000 BC | ||
| 052 | Tellurium | Te | 127.6 | 449.0 | 990.0 | 6.24 | [Kr] 4d10 5s2 5p4 | 9.0096 | 2.1 | 6,5,4,2,1,-2 |
2.25 |
16 | 1783 | ||
| 053 | Iodine | I | 126.9045 | 114.0 | 184.0 | 4.93 | [Kr] 4d10 5s2 5p5 | 10.4513 | 2.66 | 7,5,3,1, 0,-1 |
halogen solid to purple-pink gas |
17 | 1811 | ||
| 054 | Xenon | Xe | 131.293 | -112.0 | -108.0 | 5.9 | [Kr] 4d10 5s2 5p6 | 12.1298 | 2.6 | 8,6,4,3,2,0 |
noble gas |
18 | 1898 | ||
| 055 | Cesium | Cs | 132.9055 | 29.0 | 678.0 | 1.87 | [Xe] 6s1 | 3.8939 | 0.79 | 1, -1 |
0.2 |
1 | 1860 | ||
| 056 | Barium | Ba | 137.327 | 725.0 | 1,140.00 | 3.59 | [Xe] 6s2 | 5.2117 | 0.89 | 2 |
1.25 |
2 | 0.05 | 1808 | |
| 057 | Lanthanum | La | 138.9055 | 920.0 | 3,469.00 | 6.15 | [Xe] 5d1 6s2 | 5.5769 | 1.10 | 3, 2 |
2.5 |
3 | 1839 | ||
| 058 | Cerium | Ce | 140.116 | 795.0 | 3,257.00 | 6.77 | [Xe] 4f1 5d1 6s2 | 5.5387 | 1.12 | 4, 3, 2 |
2.5 |
101 | 1803 | ||
| 059 | Praseodymium | Pr | 140.9077 | 935.0 | 3,127.00 | 6.77 | [Xe] 4f3 6s2 | 5.473 | 1.13 | 4, 3, 2 |
soft |
101 | 1885 | ||
| 060 | Neodymium | Nd | 144.24 | 1,010.00 | 3,127.00 | 7.01 | [Xe] 4f4 6s2 | 5.525 | 1.14 | 4, 3, 2 |
101 | 1885 | |||
| 061 | Promethium | Pm | 145.0 | 1,100.00 | 3,000.00 | 7.3 | [Xe] 4f5 6s2 | 5.582 | 1.13 | 3 |
101 | 1945 | |||
| 062 | Samarium | Sm | 150.36 | 1,072.00 | 1,900.00 | 7.52 | [Xe] 4f6 6s2 | 5.6437 | 1.17 | 3, 2 |
101 | 1879 | |||
| 063 | Europium | Eu | 151.964 | 822.0 | 1,597.00 | 5.24 | [Xe] 4f7 6s2 | 5.6704 | 1.2 | 3, 2 |
lanthanide |
101 | 1901 | ||
| 064 | Gadolinium | Gd | 157.25 | 1,311.00 | 3,233.00 | 7.9 | [Xe] 4f7 5d1 6s2 | 6.1501 | 1.2 | 3, 2, 1 |
101 | 1880 | |||
| 065 | Terbium | Tb | 158.9253 | 1,360.00 | 3,041.00 | 8.23 | [Xe] 4f9 6s2 | 5.8638 | 1.22 | 4, 3, 1 |
101 | 1843 | |||
| 066 | Dysprosium | Dy | 162.5 | 1,412.00 | 2,562.00 | 8.55 | [Xe] 4f10 6s2 | 5.9389 | 1.23 | 4, 3, 2 |
101 | 1886 | |||
| 067 | Holmium | Ho | 164.9303 | 1,470.00 | 2,720.00 | 8.8 | [Xe] 4f11 6s2 | 6.0215 | 1.24 | 3, 2 |
101 | 1867 | |||
| 068 | Erbium | Er | 167.259 | 1,522.00 | 2,510.00 | 9.07 | [Xe] 4f12 6s2 | 6.1077 | 1.24 | 3 |
101 | 1842 | |||
| 069 | Thulium | Tm | 168.9342 | 1,545.00 | 1,727.00 | 9.32 | [Xe] 4f13 6s2 | 6.1843 | 1.25 | 3, 2 |
101 | 1879 | |||
| 070 | Ytterbium | Yb | 173.04 | 824.0 | 1,466.00 | 6.9 | [Xe] 4f14 6s2 | 6.2542 | 1.1 | 3, 2 |
101 | 1878 | |||
| 071 | Lutetium | Lu | 174.967 | 1,656.00 | 3,315.00 | 9.84 | [Xe] 4f14 5d1 6s2 | 5.4259 | 1.27 | 3 |
101 | 1907 | |||
| 072 | Hafnium | Hf | 178.49 | 2,150.00 | 5,400.00 | 13.31 | [Xe] 4f14 5d2 6s2 | 6.8251 | 1.3 | 4, 3, 2, 1 |
4 | 1923 | |||
| 073 | Tantalum | Ta | 180.9479 | 2,996.00 | 5,425.00 | 16.65 | [Xe] 4f14 5d3 6s2 | 7.5496 | 1.5 | 5,4,3,2,1, -1,-3 |
5 | 1802 | |||
| 074 | Tungsten | W | 183.84 | 3,410.00 | 5,660.00 | 19.35 | [Xe] 4f14 5d4 6s2 | 7.864 | 2.36 | 6,5,4,3,2,1, 0,-1,-2,-4 |
6 | 1783 | |||
| 075 | Rhenium | Re | 186.207 | 3,180.00 | 5,627.00 | 21.04 | [Xe] 4f14 5d5 6s2 | 7.8335 | 1.9 | 7,6,5,4,3,2,1, 0,-1,-3 |
7 | 1925 | |||
| 076 | Osmium | Os | 190.23 | 3,045.00 | 5,027.00 | 22.6 | [Xe] 4f14 5d6 6s2 | 8.4382 | 2.2 | 8,7,6,5,4,3,2,1, 0,-2 |
8 | 1803 | |||
| 077 | Iridium | Ir | 192.217 | 2,410.00 | 4,527.00 | 22.4 | [Xe] 4f14 5d7 6s2 | 8.967 | 2.2 | 6,5,4,3,2,1, 0,-1 |
silvery-white |
9 | 1803 | ||
| 078 | Platinum | Pt | 195.078 | 1,772.00 | 3,827.00 | 21.45 | [Xe] 4f14 5d9 6s1 | 8.9587 | 2.28 | 6, 5, 4, 2, 0 |
10 | 1735 | |||
| 079 | Gold | Au | 196.9665 | 1,064.00 | 2,807.00 | 19.32 | [Xe] 4f14 5d10 6s1 | 9.2255 | 2.54 | 7,5,3,2,1, 0,-1 |
11 | 2500 BC | |||
| 080 | Mercury | Hg | 200.59 | -39.0 | 357.0 | 13.55 | [Xe] 4f14 5d10 6s2 | 10.4375 | 2.00 | 2, 1 | 12 | 1500 BC | |||
| 081 | Thallium | Tl | 204.3833 | 303.0 | 1,457.00 | 11.85 | [Xe] 4f14 5d10 6s2 6p1 | 6.1082 | 1.62 | 3, 1 |
13 | 1861 | |||
| 082 | Lead | Pb | 207.2 | 327.0 | 1,740.00 | 11.35 | [Xe] 4f14 5d10 6s2 6p2 | 7.4167 | 2.33 | 4, 2 |
14 | 4000 BC | |||
| 083 | Bismuth | Bi | 208.9804 | 271.0 | 1,560.00 | 9.75 | [Xe] 4f14 5d10 6s2 6p3 | 7.2856 | 2.02 | 5,3,1,-3 |
15 | 1400> | |||
| 084 | Polonium | Po | 209.0 | 254.0 | 962.0 | 9.3 | [Xe] 4f14 5d10 6s2 6p4 | 8.417 | 2.0 | 6, 4, 2, -2 |
16 | 1898 | |||
| 085 | Astatine | At | 210.0 | 302.0 | 337.0 | [Xe] 4f14 5d10 6s2 6p5 | 9.3 | 2.2 | 7, 5, 3, 1, -1 |
17 | 1940 | ||||
| 086 | Radon | Rn | 222.0 | -71.0 | -62.0 | 9.73 | [Xe] 4f14 5d10 6s2 6p6 | 10.7485 | ? |
2, 0 |
noble gas |
18 | 1900 | ||
| 087 | Francium | Fr | 223.0 | 27.0 | 677.0 | [Rn] 7s1 | 4.0727 | 0.7 | 1 |
radioactive alkali metal |
1 | 1939 | |||
| 088 | Radium | Ra | 226.0 | 700.0 | 1,737.00 | 5.5 | [Rn] 7s2 | 5.2784 | 0.89 | 2 |
2 | 1898 | |||
| 089 | Actinium | Ac | 227.0 | 1,050.00 | 3,200.00 | 10.07 | [Rn] 6d1 7s2 | 5.17 | 1.1 | 3 |
3 | 1899 | |||
| 090 | Thorium | Th | 232.0381 | 1,750.00 | 4,790.00 | 11.72 | [Rn] 6d2 7s2 | 6.3067 | 1.3 | 4, 3, 2 |
102 | 1829 | |||
| 091 | Protactinium | Pa | 231.0359 | 1,568.00 | 15.4 | [Rn] 5f2 6d1 7s2 | 5.89 | 1.5 | 5, 4, 3 |
102 | 1913 | ||||
| 092 | Uranium | U | 238.0289 | 1,132.00 | 3,818.00 | 18.95 | [Rn] 5f3 6d1 7s2 | 6.1941 | 1.38 | 6, 5, 4, 3, 2 |
102 | 1789 | |||
| 093 | Neptunium | Np | 237.0 | 640.0 | 3,902.00 | 20.2 | [Rn] 5f4 6d1 7s2 | 6.2657 | 1.36 | 7, 6, 5, 4, 3, 2 |
102 | 1940 | |||
| 094 | Plutonium | Pu | 244.0 | 640.0 | 3,235.00 | 19.84 | [Rn] 5f6 7s2 | 6.0262 | 1.28 | 7, 6, 5, 4, 3, 2 |
102 | 1940 | |||
| 095 | Americium | Am | 243.0 | 994.0 | 2,607.00 | 13.67 | [Rn] 5f7 7s2 | 5.9738 | 1.3 | 7, 6, 5, 4, 3, 2 |
102 | 1944 | |||
| 096 | Curium | Cm | 247.0 | 1,340.00 | 13.5 | [Rn]5f76d17s2 | 5.9915 | 1.3 | 6, 5, 4, 3, 2 |
102 | 1944 | ||||
| 097 | Berkelium | Bk | 247.0 | 986.0 | 14.78 | [Rn]5f97s2 | 6.1979 | 1.3 | 4, 3, 2 |
102 | 1949 | ||||
| 098 | Californium | Cf | 251.0 | 900.0 | 15.1 | [Rn]5f107s2 | 6.2817 | 1.3 | 5, 4, 3, 2 |
102 | 1950 | ||||
| 099 | Einsteinium | Es | 252.0 | 860.0 | 13.5 (?) | [Rn]5f117s2 | 6.42 | 1.3 | 4, 3, 2 |
102 | 1952 | ||||
| 100 | Fermium | Fm | 257.0 | 1,527.00 | Unknown | [Rn]5f127s2 | 6.5 | 1.3 | 4, 3, 2 | 102 | 1952 | ||||
| 101 | Mendelevium | Md | 258.0 | Unknown | [Rn]5f137s2 | 6.58 | 1.3 | 3, 2, 1 |
102 | 1955 | |||||
| 102 | Nobelium | No | 259.0 | 827.0 | Unknown | [Rn]5f147s2 | 6.65 | 1.3 | 3, 2 |
102 | 1958 | ||||
| 103 | Lawrencium | Lr | 262.0 | 1,627.00 | 9.84 > | [Rn]5f147s27p1 | 4.9 | ? |
3, 2 |
102 | 1961 | ||||
| 104 | Rutherfordium | Rf | 261.0 | 18.1 | [Rn]5f146d27s2 | ? |
4, 3 |
4 | 1964 | ||||||
| 105 | Dubnium | Db | 262.0 | 39 (?) | *[Rn]5f146d27s2 (!Verified) | ? |
5, 4 |
5 | 1967 | ||||||
| 106 | Seaborgium | Sg | 266.0 | 35 (?) | *[Rn]5f146d47s2 | ? |
6, 5, 4 |
6 | 1974 | ||||||
| 107 | Bohrium | Bh | 264.0 | 37 (?) | *[Rn]5f146d57s2 | ? |
7, 6, 5, 4, 3 |
7 | 1981 | ||||||
| 108 | Hassium | Hs | 277.0 | 41 (?) | *[Rn]5f146d67s2 | ? |
8, 7, 4, 3, 2 |
8 | 1984 | ||||||
| 109 | Meitnerium | Mt | 268.0 | 35 (?) | *[Rn]5f146d77s2 | ? |
6, 5, 4, 3, 2, 1 |
9 | 1982 | ||||||
| 110 | Darmstadtium | Ds | 271 | 21.46 > | *[Rn]5f146d97s1 | ? |
6, 5, 4, 3, 2, 1 |
10 |
1961 | ||||||
| 111 | Roentgenium | Rg | 272 | 28.7 | *[Rn]5f146d107s1 | ? |
3,-1 |
11 |
1969 | ||||||
| 112 | Copernicium | Cn | 285 | 23.7 | *[Rn]5f146d107s2 | ? |
2, 1 |
12 |
1970 | ||||||
| 113 | Nihonium | Nh | 284 | 700 | 1400 | 16 | *[Rn]5f146d107s27p1 | ? |
1 |
13 |
1974 | ||||
| 114 | Flerovium | Fl | 289 | 340 | 420 | 14 | *[Rn]5f146d107s27p2 | ? |
2 |
14 |
1975 | ||||
| 115 | Moscovium | Mc | 288 | 13.5 | 700 | 13.5 | *[Rn]5f146d107s27p3 | ? |
3, 1 |
15 |
1982 | ||||
| 116 | Livermorium | Lv | 292 | 12.9 | 709 | 12.9 | *[Rn]5f146d107s27p4 | ? |
4, 2 |
16 |
1984 | ||||
| 117 | Tennessine | Ts | 294 | 7.2 | 723 | 7.2 | *[Rn]5f146d107s27p5 | ? |
? |
17 |
1994 | ||||
| 118 | Oganesson | Og | 294 | 5.0 | 258 | 5.0 | *[Rn]5f146d107s27p6 | ? |
8, 6, 4, 2 |
18 |
1994 |