Note: These are normalized values for the graph (note the multications) No. Symbol Name Melting Point (C) Boiling Point (C) Density (g/cm3) * 1000 Thermal conductivity (W/cmK) * 1000 Ionization energy (eV) * 200 Atomic Weight 1 H Hydrogen -259 -253 18 1.815 2719.68 1.0079 2 He Helium -272 -269 36 1.52 4917.48 4.0026 3 Li Lithium 180 1347 106 847 1078.34 6.941 4 Be Beryllium 1278 2970 370 2010 1864.54 9.0122 5 B Boron 2300 2550 468 274 1659.6 10.811 6 C Carbon 3500 4827 452 1290 2252.06 12.0107 7 N Nitrogen -210 -196 250 0.2598 2906.82 14.0067 8 O Oxygen -218 -183 286 0.2674 2723.62 15.9994 9 F Fluorine -220 -188 340 0.279 3484.56 18.9984 10 Ne Neon -249 -246 180 0.493 4312.9 20.1797 11 Na Sodium 98 883 194 1410 1027.82 22.9897 12 Mg Magnesium 639 1090 348 1560 1529.24 24.305 13 Al Aluminum 660 2467 540 2370 1197.16 26.9815 14 Si Silicon 1410 2355 466 1480 1630.34 28.0855 15 P Phosphorus 44 280 364 2.35 2097.34 30.9738 16 S Sulfur 113 445 414 2.69 2072 32.065 17 Cl Chlorine -101 -35 642 0.089 2593.52 35.453 18 Ar Argon -189 -186 356 0.1772 3151.92 39.948 19 K Potassium 64 774 172 1024 868.14 39.0983 20 Ca Calcium 839 1484 310 2010 1222.64 40.078 21 Sc Scandium 1539 2832 598 158 1312.3 44.9559 22 Ti Titanium 1660 3287 908 219 1365.62 47.867 23 V Vanadium 1890 3380 1222 307 1349.24 50.9415 24 Cr Chromium 1857 2672 1438 937 1353.3 51.9961 25 Mn Manganese 1245 1962 1486 78.2 1486.8 54.938 26 Fe Iron 1535 2750 1574 802 1580.48 55.845 27 Co Cobalt 1495 2870 1780 1000 1576.2 58.9332 28 Ni Nickel 1453 2732 1780 907 1527.96 58.6934 29 Cu Copper 1083 2567 1792 4010 1545.28 63.546 30 Zn Zinc 420 907 1426 1160 1878.84 65.39 31 Ga Gallium 30 2403 1182 406 1199.86 69.723 32 Ge Germanium 937 2830 1064 599 1579.88 72.64 33 As Arsenic 81 613 1144 502 1957.72 74.9216 34 Se Selenium 217 685 958 20.4 1950.48 78.96 35 Br Bromine -7 59 624 1.22 2362.76 79.904 36 Kr Krypton -157 -153 750 0.0949 2799.92 83.8 37 Rb Rubidium 39 688 326 582 835.42 85.4678 38 Sr Strontium 769 1384 508 353 1138.98 87.62 39 Y Yttrium 1523 3337 894 172 1243.46 88.9059 40 Zr Zirconium 1852 4377 1302 227 1326.78 91.224 41 Nb Niobium 2468 4927 1714 537 1351.78 92.9064 42 Mo Molybdenum 2617 4612 2044 1380 1418.48 95.94 43 Tc Technetium 2200 4877 2300 506 1456 98 44 Ru Ruthenium 2250 3900 2474 1170 1472.1 101.07 45 Rh Rhodium 1966 3727 2482 1500 1491.78 102.9055 46 Pd Palladium 1552 2927 2404 718 1667.38 106.42 47 Ag Silver 962 2212 2100 4290 1515.24 107.8682 48 Cd Cadmium 321 765 1730 968 1798.76 112.411 49 In Indium 157 2000 1462 816 1157.28 114.818 50 Sn Tin 232 2270 1462 666 1468.78 118.71 51 Sb Antimony 630 1750 1336 243 1721.68 121.76 52 Te Tellurium 449 990 1248 23.5 1801.92 127.6 53 I Iodine 114 184 986 4.49 2090.26 126.9045 54 Xe Xenon -112 -108 1180 0.0569 2425.96 131.293 55 Cs Cesium 29 678 374 359 778.78 132.9055 56 Ba Barium 725 1140 718 184 1042.34 137.327 57 La Lanthanum 920 3469 1230 135 1115.38 138.9055 58 Ce Cerium 795 3257 1354 114 1107.74 140.116 59 Pr Praseodymium 935 3127 1354 125 1094.6 140.9077 60 Nd Neodymium 1010 3127 1402 165 1105 144.24 61 Pm Promethium 1100 3000 1460 179 1116.4 145 62 Sm Samarium 1072 1900 1504 133 1128.74 150.36 63 Eu Europium 822 1597 1048 139 1134.08 151.964 64 Gd Gadolinium 1311 3233 1580 106 1230.02 157.25 65 Tb Terbium 1360 3041 1646 111 1172.76 158.9253 66 Dy Dysprosium 1412 2562 1710 107 1187.78 162.5 67 Ho Holmium 1470 2720 1760 162 1204.3 164.9303 68 Er Erbium 1522 2510 1814 143 1221.54 167.259 69 Tm Thulium 1545 1727 1864 168 1236.86 168.9342 70 Yb Ytterbium 824 1466 1380 349 1250.84 173.04 71 Lu Lutetium 1656 3315 1968 164 1085.18 174.967 72 Hf Hafnium 2150 5400 2662 230 1365.02 178.49 73 Ta Tantalum 2996 5425 3330 575 1509.92 180.9479 74 W Tungsten 3410 5660 3870 1740 1572.8 183.84 75 Re Rhenium 3180 5627 4208 479 1566.7 186.207 76 Os Osmium 3045 5027 4520 876 1687.64 190.23 77 Ir Iridium 2410 4527 4480 1470 1793.4 192.217 78 Pt Platinum 1772 3827 4290 716 1791.74 195.078 79 Au Gold 1064 2807 3864 3170 1845.1 196.9665 80 Hg Mercury -39 357 2710 83.4 2087.5 200.59 81 Tl Thallium 303 1457 2370 461 1221.64 204.3833 82 Pb Lead 327 1740 2270 353 1483.34 207.2 83 Bi Bismuth 271 1560 1950 78.7 1457.12 208.9804 84 Po Polonium 254 962 1860 200 1683.4 209 85 At Astatine 302 337 17 1860 210 86 Rn Radon -71 -62 1946 0.0364 2149.7 222 87 Fr Francium 27 677 150 814.54 223 88 Ra Radium 700 1737 1100 186 1055.68 226 89 Ac Actinium 1050 3200 2014 120 1034 227 90 Th Thorium 1750 4790 2344 540 1261.34 232.0381 91 Pa Protactinium 1568 3080 470 1178 231.0359 92 U Uranium 1132 3818 3790 276 1238.82 238.0289 93 Np Neptunium 640 3902 4040 63 1253.14 237 94 Pu Plutonium 640 3235 3968 67.4 1205.24 244 95 Am Americium 994 2607 2734 100 1194.76 243 96 Cm Curium 1340 2700 100 1198.3 247 97 Bk Berkelium 986 2956 100 1239.58 247 98 Cf Californium 900 3020 100 1256.34 251 99 Es Einsteinium 860 100 1284 252 100 Fm Fermium 1527 100 1300 257 101 Md Mendelevium 100 1316 258 102 No Nobelium 827 100 1330 259 103 Lr Lawrencium 1627 100 980 262 104 Rf Rutherfordium 230 261 105 Db Dubnium 580 262 106 Sg Seaborgium 266 107 Bh Bohrium 264 108 Hs Hassium 277 109 Mt Meitnerium 268 110 Ds Darmstadtium 111 Uuu Unununium 112 Uub Ununbium 113 Uut Ununtrium 114 Uuq Ununquadium 115 Uup Ununpentium 116 Uuh Ununhexium 117 Uus Ununseptium 118 Uuo Ununoctium