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Multiple additions and corrections.
AtomicNumber Element Symbol AtomicMass NumberOfNeutrons NumberOfProtons NumberOfElectrons Period Group Phase Radioactive Natural Metal Nonmetal Metalloid Type AtomicRadius Electronegativity ionizationEnergy Density MeltingPoint BoilingPoint stableIsotopes Discoverer Year SpecificHeat NumberOfShells NumberOfValence
1 Hydrogen H 1.008 0 1 1 1 1 Gas yes yes Non-Metal 120 2.20 13.5984 0.000090 13.81 20.28 2 Henry Cavendish 1766 14.304 1 1
2 Helium He 4.003 2 2 2 1 18 Gas yes yes Noble Gas 140 24.5874 0.000179 0.95 4.22 2 Pierre Janssen - Norman Lockyer and Edward Frankland 1868 5.193 1 2
3 Lithium Li 7.000 4 3 3 2 1 Solid yes yes Alkali Metal 182 0.98 5.3917 0.534000 453.65 1615.00 2 Johan August Arfvedson - isolated Robert Bunsen and Augustus Mathhiesen 1817 3.582 2 1
4 Beryllium Be 9.012 5 4 4 2 2 Solid yes yes Alkaline Earth Metal 153 1.57 9.3227 1.850000 1560.00 2744.00 1 Nicholas Louis Vauquelin - isolated Friedrich Wöhler and Antoine A. Bussy [independently] 1797 1.825 2 2
5 Boron B 10.810 6 5 5 2 13 Solid yes yes Metalloid 192 2.04 8.2980 2.370000 2348.00 4273.00 2 Joseph Louis Gay-Lussac with Louis Jacques Thénard and Sir Humphrey Davy [independently] 1808 1.026 2 3
6 Carbon C 12.011 6 6 6 2 14 Solid yes yes Non-Metal 170 2.55 11.2603 2.267000 3823.00 4098.00 2 Prehistoric 0.709 2 4
7 Nitrogen N 14.007 7 7 7 2 15 Gas yes yes Non-Metal 155 3.04 14.5341 0.001251 63.15 77.36 2 Daniel Rutherford 1772 1.040 2 5
8 Oxygen O 15.999 8 8 8 2 16 Gas yes yes Non-Metal 152 3.44 13.6181 0.001429 54.36 90.20 3 Joseph Priestly and Carl Wilhelm Scheele [independently] 1774 0.918 2 6
9 Fluorine F 18.998 10 9 9 2 17 Gas yes yes Halogen 135 3.98 17.4228 0.001696 53.53 85.03 1 Henri Moissan 1886 0.824 2 7
10 Neon Ne 20.180 10 10 10 2 18 Gas yes yes Noble Gas 154 21.5645 0.000900 24.56 27.07 3 Sir William Ramsay and Morris Travers 1898 1.030 2 8
11 Sodium Na 22.990 12 11 11 3 1 Solid yes yes Alkali Metal 227 0.93 5.1391 0.970000 370.95 1156.00 1 Sir Humphrey Davy 1807 1.228 3 1
12 Magnesium Mg 24.305 12 12 12 3 2 Solid yes yes Alkaline Earth Metal 173 1.31 7.6462 1.740000 923.00 1363.00 3 Joseph Black - isolated Sir Humphrey Davy 1755 1.023 3 2
13 Aluminum Al 26.982 14 13 13 3 13 Solid yes yes Post-Transition Metal 184 1.61 5.9858 2.700000 933.44 2792.00 1 Hans Christian Ørsted and Friedrich Wöhler 1825 0.897 3 3
14 Silicon Si 28.085 14 14 14 3 14 Solid yes yes Metalloid 210 1.90 8.1517 2.329600 1687.00 3538.00 3 Jöns Jakob Berzelius 1824 0.705 3 4
15 Phosphorus P 30.974 16 15 15 3 15 Solid yes yes Non-Metal 180 2.19 10.4867 1.820000 317.30 553.65 1 Hennig Brandt 1669 0.769 3 5
16 Sulfur S 32.070 16 16 16 3 16 Solid yes yes Non-Metal 180 2.58 10.3600 2.067000 388.36 717.75 4 Prehistoric 0.710 3 6
17 Chlorine Cl 35.450 18 17 17 3 17 Gas yes yes Halogen 175 3.16 12.9676 0.003214 171.65 239.11 2 Carl Wilhelm Scheele 1774 0.479 3 7
18 Argon Ar 39.900 22 18 18 3 18 Gas yes yes Noble Gas 188 15.7596 0.001784 83.80 87.30 3 John William Strutt [3rd Baron Rayleigh] and Sir William Ramsay 1894 0.520 3 8
19 Potassium K 39.098 20 19 19 4 1 Solid yes yes Alkali Metal 275 0.82 4.3407 0.890000 336.53 1032.00 2 Sir Humphrey Davy 1807 0.757 4 1
20 Calcium Ca 40.080 20 20 20 4 2 Solid yes yes Alkaline Earth Metal 231 1.00 6.1132 1.540000 1115.00 1757.00 5 Sir Humphrey Davy 1808 0.647 4 2
21 Scandium Sc 44.956 24 21 21 4 3 Solid yes yes Transition Metal 211 1.36 6.5615 2.990000 1814.00 3109.00 1 Lars Fredrick Nilson 1879 0.568 4 2
22 Titanium Ti 47.867 26 22 22 4 4 Solid yes yes Transition Metal 187 1.54 6.8281 4.500000 1941.00 3560.00 5 William Gregor isolated Lars Fredrick Nilson 1791 0.523 4 2
23 Vanadium V 50.942 28 23 23 4 5 Solid yes yes Transition Metal 179 1.63 6.7462 6.000000 2183.00 3680.00 1 Andrés Manuel del Río 1801 0.489 4 2
24 Chromium Cr 51.996 28 24 24 4 6 Solid yes yes Transition Metal 189 1.66 6.7665 7.150000 2180.00 2944.00 4 Nicholas Louis Vauquelin 1797 0.449 4 1
25 Manganese Mn 54.938 30 25 25 4 7 Solid yes yes Transition Metal 197 1.55 7.4340 7.300000 1519.00 2334.00 1 Johan Gottlieb Gahn 1774 0.479 4 2
26 Iron Fe 55.840 30 26 26 4 8 Solid yes yes Transition Metal 194 1.83 7.9024 7.874000 1811.00 3134.00 4 Prehistoric 0.449 4 2
27 Cobalt Co 58.933 32 27 27 4 9 Solid yes yes Transition Metal 192 1.88 7.8810 8.860000 1768.00 3200.00 1 Georg Brandt 1735 0.421 4 2
28 Nickel Ni 58.693 31 28 28 4 10 Solid yes yes Transition Metal 163 1.91 7.6398 8.912000 1728.00 3186.00 5 Baron Axel Fredrik Cronstedt 1751 0.444 4 2
29 Copper Cu 63.550 35 29 29 4 11 Solid yes yes Transition Metal 140 1.90 7.7264 8.933000 1357.77 2835.00 2 Prehistoric 0.385 4 1
30 Zinc Zn 65.400 35 30 30 4 12 Solid yes yes Transition Metal 139 1.65 9.3942 7.134000 692.68 1180.00 5 Ancient – rediscovered Andreas Sigismund Marggraf 1746 0.388 4 2
31 Gallium Ga 69.723 39 31 31 4 13 Solid yes yes Post-Transition Metal 187 1.81 5.9993 5.910000 302.91 2477.00 2 Paul Émile Lecoq de Boisbaudran 1875 0.371 4 3
32 Germanium Ge 72.630 41 32 32 4 14 Solid yes yes Metalloid 211 2.01 7.8994 5.323000 1211.40 3106.00 4 Clemens A. Winkler 1886 0.320 4 4
33 Arsenic As 74.922 42 33 33 4 15 Solid yes yes Metalloid 185 2.18 9.7886 5.776000 1090.00 887.00 1 Ancient – obtained Albertus Magnus [Albert the Great] 1250 0.329 4 5
34 Selenium Se 78.970 45 34 34 4 16 Solid yes yes Non-Metal 190 2.55 9.7524 4.809000 493.65 958.00 5 Jöns Jakob Berzelius 1817 0.321 4 6
35 Bromine Br 79.900 45 35 35 4 17 Liquid yes yes Halogen 183 2.96 11.8138 3.110000 265.95 331.95 2 Antoine J. Balard and C. Löwig [independently] 1826 0.474 4 7
36 Krypton Kr 83.800 48 36 36 4 18 Gas yes yes Noble Gas 202 3.00 13.9996 0.003733 115.79 119.93 5 Sir William Ramsay and Morris Travers 1898 0.248 4 8
37 Rubidium Rb 85.468 48 37 37 5 1 Solid yes yes Alkali Metal 303 0.82 4.1771 1.530000 312.46 961.00 1 Robert Bunsen and Gustav R. Kirchhoff 1861 0.363 5 1
38 Strontium Sr 87.620 50 38 38 5 2 Solid yes yes Alkaline Earth Metal 249 0.95 5.6949 2.640000 1050.00 1655.00 4 Adair Crawford - isolated Sir Humphrey Davy 1808 0.301 5 2
39 Yttrium Y 88.906 50 39 39 5 3 Solid yes yes Transition Metal 219 1.22 6.2173 4.470000 1795.00 3618.00 1 Johan Gadolin 1794 0.298 5 2
40 Zirconium Zr 91.220 51 40 40 5 4 Solid yes yes Transition Metal 186 1.33 6.6339 6.520000 2128.00 4682.00 4 Martin Heinrich Klaproth – isolated Jöns Jakob Berzelius 1789 0.278 5 2
41 Niobium Nb 92.906 52 41 41 5 5 Solid yes yes Transition Metal 207 1.60 6.7589 8.570000 2750.00 5017.00 1 Charles Hatchett 1801 0.265 5 1
42 Molybdenum Mo 95.950 54 42 42 5 6 Solid yes yes Transition Metal 209 2.16 7.0924 10.200000 2896.00 4912.00 6 Peter J. Hjelm 1781 0.251 5 1
43 Technetium Tc 98.000 55 43 43 5 7 Solid yes yes Transition Metal 209 1.90 7.2800 11.000000 2430.00 4538.00 0 Carlo Perrier and Emilio Segrè 1937 5 1
44 Ruthenium Ru 101.100 57 44 44 5 8 Solid yes yes Transition Metal 207 2.20 7.3605 12.100000 2607.00 4423.00 7 Jędrzej Śniadecki -isolated Karl Klaus 1844 0.238 5 1
45 Rhodium Rh 102.906 58 45 45 5 9 Solid yes yes Transition Metal 195 2.28 7.4589 12.400000 2237.00 3968.00 1 William Hyde Wollaston 1803 0.243 5 1
46 Palladium Pd 106.420 60 46 46 5 10 Solid yes yes Transition Metal 202 2.20 8.3369 12.000000 1828.05 3236.00 6 William Hyde Wollaston 1803 0.244 5 1
47 Silver Ag 107.868 61 47 47 5 11 Solid yes yes Transition Metal 172 1.93 7.5762 10.501000 1234.93 2435.00 2 Prehistoric 0.235 5 2
48 Cadmium Cd 112.410 64 48 48 5 12 Solid yes yes Transition Metal 158 1.69 8.9938 8.690000 594.22 1040.00 6 Friedrich Strohmeyer 1817 0.232 5 3
49 Indium In 114.818 66 49 49 5 13 Solid yes yes Post-Transition Metal 193 1.78 5.7864 7.310000 429.75 2345.00 1 Ferdinand Reich and Hieronymous Richter 1863 0.233 5 4
50 Tin Sn 118.710 69 50 50 5 14 Solid yes yes Post-Transition Metal 217 1.96 7.3439 7.287000 505.08 2875.00 10 Prehistoric 0.228 5 5
51 Antimony Sb 121.760 71 51 51 5 15 Solid yes yes Metalloid 206 2.05 8.6084 6.685000 903.78 1860.00 2 Prehistoric – studied Nicolas Lémery 1707 0.207 5 6
52 Tellurium Te 127.600 76 52 52 5 16 Solid yes yes Metalloid 206 2.10 9.0096 6.232000 722.66 1261.00 6 Baron Franz Joseph Müller von Reichenstein – isolated Martin-Heinrich Klaproth 1798 0.202 5 7
53 Iodine I 126.905 74 53 53 5 17 Solid yes yes Halogen 198 2.66 10.4513 4.930000 386.85 457.55 1 Bernard Courtois 1811 0.214 5 8
54 Xenon Xe 131.290 77 54 54 5 18 Gas yes yes Noble Gas 216 2.60 12.1298 0.005887 161.36 165.03 7 Sir William Ramsay and Morris Travers 1898 0.158 5 1
55 Cesium Cs 132.905 78 55 55 6 1 Solid yes yes Alkali Metal 343 0.79 3.8939 1.930000 301.59 944.00 1 Robert Bunsen and Gustav R. Kirchhoff 1860 0.242 6 2
56 Barium Ba 137.330 81 56 56 6 2 Solid yes yes Alkaline Earth Metal 268 0.89 5.2117 3.620000 1000.00 2170.00 6 Sir Humphrey Davy 1808 0.204 6 2
57 Lanthanum La 138.906 82 57 57 6 3 Solid yes yes Lanthanide 240 1.10 5.5769 6.150000 1191.00 3737.00 1 Carl Gustav Mosander 1839 0.195 6 2
58 Cerium Ce 140.116 82 58 58 6 Solid yes yes Lanthanide 235 1.12 5.5387 6.770000 1071.00 3697.00 4 Jöns Jakob Berzelius and Wilhelm von Hisinger - isolated William F. Hillebrand and Thomas H. Norton 1803 0.192 6 2
59 Praseodymium Pr 140.908 82 59 59 6 Solid yes yes Lanthanide 239 1.13 5.4730 6.770000 1204.00 3793.00 1 Baron Carl Auer von Welsbach 1885 0.193 6 2
60 Neodymium Nd 144.240 84 60 60 6 Solid yes yes Lanthanide 229 1.14 5.5250 7.010000 1294.00 3347.00 5 Baron Carl Auer von Welsbach 1885 0.190 6 2
61 Promethium Pm 144.913 84 61 61 6 Solid yes yes Lanthanide 236 1.13 5.5820 7.260000 1315.00 3273.00 0 Jacob A. Marinsky and Lawrence E. Glendenin and Charles D. Coryell 1945 6 2
62 Samarium Sm 150.400 88 62 62 6 Solid yes yes Lanthanide 229 1.17 5.6437 7.520000 1347.00 2067.00 5 Paul Émile Lecoq de Boisbaudran 1879 0.197 6 2
63 Europium Eu 151.964 89 63 63 6 Solid yes yes Lanthanide 233 1.20 5.6704 5.240000 1095.00 1802.00 1 Eugène-Antole Demarçay 1901 0.182 6 2
64 Gadolinium Gd 157.200 93 64 64 6 Solid yes yes Lanthanide 237 1.20 6.1501 7.900000 1586.00 3546.00 6 Jean Charles Galissard de Marignac 1880 0.236 6 2
65 Terbium Tb 158.925 94 65 65 6 Solid yes yes Lanthanide 221 1.20 5.8638 8.230000 1629.00 3503.00 1 Carl Gustaf Mosander 1843 0.182 6 2
66 Dysprosium Dy 162.500 97 66 66 6 Solid yes yes Lanthanide 229 1.22 5.9389 8.550000 1685.00 2840.00 7 Paul Émile Lecoq de Boisbaudran 1886 0.170 6 2
67 Holmium Ho 164.930 98 67 67 6 Solid yes yes Lanthanide 216 1.23 6.0215 8.800000 1747.00 2973.00 1 Marc Delafontaine with Jacques-Louis Soret and Per Teodor Cleve 1878 0.165 6 2
68 Erbium Er 167.260 99 68 68 6 Solid yes yes Lanthanide 235 1.24 6.1077 9.070000 1802.00 3141.00 6 Carl Gustaf Mosander 1843 0.168 6 2
69 Thulium Tm 168.934 100 69 69 6 Solid yes yes Lanthanide 227 1.25 6.1843 9.320000 1818.00 2223.00 1 Per Teodor Cleve 1879 0.160 6 2
70 Ytterbium Yb 173.050 103 70 70 6 Solid yes yes Lanthanide 242 1.10 6.2542 6.900000 1092.00 1469.00 7 Jean Charles Galissard de Marignac 1878 0.155 6 2
71 Lutetium Lu 174.967 104 71 71 6 Solid yes yes Lanthanide 221 1.27 5.4259 9.840000 1936.00 3675.00 1 Georges Urbain and Charles James [independently] 1907 0.154 6 2
72 Hafnium Hf 178.490 106 72 72 6 4 Solid yes yes Transition Metal 212 1.30 6.8251 13.300000 2506.00 4876.00 5 Dirk Coster and Georg von Hevesey 1923 0.144 6 2
73 Tantalum Ta 180.948 108 73 73 6 5 Solid yes yes Transition Metal 217 1.50 7.5496 16.400000 3290.00 5731.00 2 Anders Gustaf Ekenberg 1802 0.140 6 2
74 Tungsten W 183.840 110 74 74 6 6 Solid yes yes Transition Metal 210 2.36 7.8640 19.300000 3695.00 5828.00 4 José and Fausto Elhuijar 1783 0.132 6 2
75 Rhenium Re 186.207 111 75 75 6 7 Solid yes yes Transition Metal 217 1.90 7.8335 20.800000 3459.00 5869.00 1 Walter Noddack and Ida Tacke and and Otto Berg 1925 0.137 6 2
76 Osmium Os 190.200 114 76 76 6 8 Solid yes yes Transition Metal 216 2.20 8.4382 22.570000 3306.00 5285.00 6 Smithson Tennant and William Hyde Wollaston 1803 0.130 6 2
77 Iridium Ir 192.220 115 77 77 6 9 Solid yes yes Transition Metal 202 2.20 8.9670 22.420000 2719.00 4701.00 2 Smithson Tennant 1803 0.131 6 1
78 Platinum Pt 195.080 117 78 78 6 10 Solid yes yes Transition Metal 209 2.28 8.9587 21.460000 2041.55 4098.00 5 Prehistoric pre-Columbian South Americans - Don Antonio de Ulloa 1735 0.133 6 1
79 Gold Au 196.967 118 79 79 6 11 Solid yes yes Transition Metal 166 2.54 9.2255 19.282000 1337.33 3129.00 1 Prehistoric 0.129 6 2
80 Mercury Hg 200.590 121 80 80 6 12 Liquid yes yes Transition Metal 209 2.00 10.4375 13.533600 234.32 629.88 7 Prehistoric 0.140 6 3
81 Thallium Tl 204.383 123 81 81 6 13 Solid yes yes Post-Transition Metal 196 1.62 6.1082 11.800000 577.00 1746.00 2 William Crookes 1861 0.129 6 4
82 Lead Pb 207.000 125 82 82 6 14 Solid yes yes Post-Transition Metal 202 2.33 7.4167 11.342000 600.61 2022.00 4 Prehistoric 0.129 6 5
83 Bismuth Bi 208.980 126 83 83 6 15 Solid yes yes Post-Transition Metal 207 2.02 7.2856 9.807000 544.55 1837.00 0 Ancient – isolated Claude-Francois Geoffroy 1753 0.122 6 6
84 Polonium Po 209.000 125 84 84 6 16 Solid yes yes yes Metalloid 197 2.00 8.4170 9.320000 527.00 1235.00 0 Marie Curie 1898 6 7
85 Astatine At 209.987 125 85 85 6 17 Solid yes yes yes Halogen 202 2.20 9.3000 7.000000 575.00 503.00 0 Dale R. Corson and K. R. MacKenzie and Emilio Segrè 1940 6 8
86 Radon Rn 222.018 136 86 86 6 18 Gas yes yes yes Noble Gas 220 2.20 10.7485 0.009730 202.00 211.45 0 Friederich Ernst Dorn 1900 0.094 6 1
87 Francium Fr 223.020 136 87 87 7 1 Solid yes yes yes Alkali Metal 348 0.70 4.0727 300.00 890.00 0 Marguerite Perey 1939 7 2
88 Radium Ra 226.025 138 88 88 7 2 Solid yes yes yes Alkaline Earth Metal 283 0.90 5.2784 5.500000 973.00 1413.00 0 Pierre and Marie Curie 1898 7 2
89 Actinium Ac 227.028 138 89 89 7 3 Solid yes yes yes Actinide 260 1.10 5.1700 10.070000 1324.00 3471.00 0 André-Louis Debierne 1899 0.120 7 2
90 Thorium Th 232.038 142 90 90 7 Solid yes yes yes Actinide 237 1.30 6.3067 11.720000 2023.00 5061.00 0 Jöns Jakob Berzelius 1828 0.113 7 2
91 Protactinium Pa 231.036 140 91 91 7 Solid yes yes yes Actinide 243 1.50 5.8900 15.370000 1845.00 4300.00 0 Otto Hahn with Lise Meitner - Kasimir Fajans with O. H. Göhring - Frederick Soddy with John Cranston with Alexander Fleck [independently] – isolated Aristid V. Grosse 1934 7 2
92 Uranium U 238.029 146 92 92 7 Solid yes yes yes Actinide 240 1.38 6.1941 18.950000 1408.00 4404.00 0 Martin-Heinrich Klaproth – isolated Eugène-Melchior Peligot 1841 0.116 7 2
93 Neptunium Np 237.048 144 93 93 7 Solid yes yes Actinide 221 1.36 6.2657 20.250000 917.00 4175.00 0 Edwin M. McMillan and Philip H. Abelson 1940 7 2
94 Plutonium Pu 244.064 150 94 94 7 Solid yes yes Actinide 243 1.28 6.0262 19.840000 913.00 3501.00 0 Glenn T. Seaborg and Arthur C. Wahl and Joseph W. Kennedy 1940 7 2
95 Americium Am 243.061 148 95 95 7 Solid yes yes Actinide 244 1.30 5.9738 13.690000 1449.00 2284.00 0 Glenn T. Seaborg and Ralph A. James and Leon O. Morgan and Albert Ghiorso 1944 7 2
96 Curium Cm 247.070 151 96 96 7 Solid yes yes Actinide 245 1.30 5.9915 13.510000 1618.00 3400.00 0 Glenn T. Seaborg and Ralph A. James and and Albert Ghiorso 1944 7 2
97 Berkelium Bk 247.070 150 97 97 7 Solid yes yes Actinide 244 1.30 6.1979 14.000000 1323.00 2900.00 0 Stanley G. Thompson and Albert Ghiorso and and Glenn T. Seaborg 1949 7 2
98 Californium Cf 251.080 153 98 98 7 Solid yes yes Actinide 245 1.30 6.2817 15.100000 1173.00 1743.00 0 Stanley G. Thompson and Kenneth Street and Jr. and Albert Ghiorso and and Glenn T. Seaborg 1950 7 2
99 Einsteinium Es 252.083 153 99 99 7 Solid yes yes Actinide 245 1.30 6.4200 8.840000 1133.00 1269.00 0 Gregory R. Choppin and Stanley G. Thompson and Albert Ghiorso and and Bernard G. Harvey 1952 7 2
100 Fermium Fm 257.095 157 100 100 7 Solid yes yes Actinide 1.30 6.5000 9.970000 1800.00 0 Gregory R. Choppin and Stanley G. Thompson and Albert Ghiorso and and Bernard G. Harvey 1952 7 2
101 Mendelevium Md 258.098 157 101 101 7 Solid yes yes Actinide 1.30 6.5800 10.300000 1100.00 0 Albert Ghiorso and Bernard G. Harvey and Greogory R. Chopin and Stanley G. Thompson and and Glenn T. Seaborg 1955 7 2
102 Nobelium No 259.101 157 102 102 7 Solid yes yes Actinide 1.30 6.6500 9.900000 1100.00 0 Albert Ghiorso and Torbjorn Sikkeland and John R. Walton and and Glenn T. Seaborg 1958 7 3
103 Lawrencium Lr 266.120 163 103 103 7 Solid yes yes Actinide 1.30 14.400000 1900.00 0 Albert Ghiorso and Torbjorn Sikkeland and Almon Larsh and and Robert M. Latimer 1961 7 2
104 Rutherfordium Rf 267.122 163 104 104 7 4 Solid yes yes Transition Metal 17.000000 0 Researchers at the JINR and Albert Ghiorso et. al. 1964 7 2
105 Dubnium Db 268.126 163 105 105 7 5 Solid yes yes Transition Metal 21.600000 0 Researchers at the JINR and Albert Ghiorso et. al. 1967 7 2
106 Seaborgium Sg 269.128 163 106 106 7 6 Solid yes yes Transition Metal 23.500000 0 Albert Ghiorso et. al. 1974 7 2
107 Bohrium Bh 270.133 163 107 107 7 7 Solid yes yes Transition Metal 26.500000 0 Peter Armbruster and Gottfried Münzenberg et. al. 1981 7 2
108 Hassium Hs 269.134 161 108 108 7 8 Solid yes yes Transition Metal 28.000000 0 Peter Armbruster and Gottfried Münzenberg et. al. 1984 7
109 Meitnerium Mt 277.154 168 109 109 7 9 Solid yes yes Transition Metal 27.500000 0 Peter Armbruster and Gottfried Münzenberg et. al. 1982 7
110 Darmstadtium Ds 282.166 172 110 110 7 10 Solid (Expected) yes yes Transition Metal 26.500000 0 Jorge Rigol et. al. 1994 7
111 Roentgenium Rg 282.169 171 111 111 7 11 Solid (Expected) yes yes Transition Metal 22.500000 0 Peter Armbruster and Gottfried Münzenberg et. al. 1994 7
112 Copernicium Cn 286.179 174 112 112 7 12 Solid (Expected) yes yes Transition Metal 23.700000 0 Peter Armbruster and Gottfried Münzenberg et. al. 1996 7
113 Nihonium Nh 286.182 173 113 113 7 13 Solid (Expected) yes yes Post-Transition Metal 11.850000 0 RIKEN Nishina Center for Accelerator-based Science 2004 7
114 Flerovium Fl 290.192 176 114 114 7 14 Solid (Expected) yes yes Post-Transition Metal 9.928000 0 Joint Institute for Nuclear Research 1998 7
115 Moscovium Mc 290.196 175 115 115 7 15 Solid (Expected) yes yes Post-Transition Metal 13.500000 0 Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory and Oak Ridge National Laboratory 2003 7
116 Livermorium Lv 293.205 177 116 116 7 16 Solid (Expected) yes yes Post-Transition Metal 12.900000 0 Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory 2000 7
117 Tennessine Ts 294.211 177 117 117 7 17 Solid (Expected) yes yes Halogen 7.200000 0 Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory and Oak Ridge National Laboratory 2010 7
118 Oganesson Og 295.216 177 118 118 7 18 Gas (Expected) yes yes Noble Gas 7.200000 0 Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory 2006 7
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Multiple additions and corrections.

This CSV is generated from a Java Enum I wrote, here:
https://github.com/speters33w/PeriodicTable

Most non-calculated data is from NIH PubChem
Some data from newer elements (such as the density of Copernicium, etc.) is expected, but not verifiable at this time.

Atomic mass: Atomic Weight of an element in atomic mass units (amu)
Atomic Radius: the van der Waals atomic radius in picometers (pm).
Electronegativity: Electronegativity in Pauling units
IonizationEnergy: the ionization energy of an element in electron-volts (eV)
Density: density of an element in g/cm^3
Melting Point: the melting point of an element in degrees Kelvin
Boiling Point: the boiling point of an element in degrees Kelvin
Specific Heat: the specific heat of an element in Joules per gram Kelvin J/(g•K)

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