Atomic Masses of The Elements
| Element | Symbol | At. No. | At. Mass | M.P., oC | B.P., oC |
| Actinium | Ac | 89 | 227.028 | 1050 | 3200±300 |
| Aluminum | Al | 13 | 26.981539(5) | 660.37 | 2467 |
| Americium | Am | 95 | 243 | 994±4 | 2607 |
| Antimony | Sb | 51 | 121.757 | 630.74 | 1750 |
| Argon | Ar | 18 | 39.948(1) | -189.2 | -185.7 |
| Arsenic | As | 33 | 74.92159(2) | 817 (28 atm) | 613(sublimes) |
| Astatine | At | 85 | 210 | 302 | 337 |
| Barium | Ba | 56 | 137.327(7) | 725 | 1640 |
| Berkelium | Bk | 97 | 247 | ||
| Beryllium | Be | 4 | 9.012182(3) | 1278±5 | 2970(5 torr) |
| Bismuth | Bi | 83 | 208.98037(3) | 271.3 | 1560±5 |
| Bohrium | Bh | 107 | 262 | 2079 | 2550(sublimes) |
| Boron | B | 5 | 10.811(5) | -7.2 | 58.78 |
| Bromine | Br | 35 | 79.904 | 320.9 | 765 |
| Cadmium | Cd | 48 | 112.411(8) | 28.40±0.01 | 669.3 |
| Calcium | Ca | 20 | 40.078(9) | 839±2 | 1484 |
| Californium | Cf | 98 | 251 | ||
| Carbon | C | 6 | 12.011(1) | 3652(sublimes) | |
| Cerium | Ce | 58 | 140.115(4) | 798 | 3443 |
| Cesium | Cs | 55 | 132.90543(5) | 28.40±0.01 | 669.3 |
| Chlorine | Cl | 17 | 35.4527(9) | -100.98 | -34.6 |
| Chromium | Cr | 24 | 51.9961(6) | 1857±20 | 2672 |
| Cobalt | Co | 27 | 58.93320(1) | 1495 | 2870 |
| Copper | Cu | 29 | 63.546(3) | 1083.4±0.2 | 2567 |
| Curium | Cm | 96 | 247 | 1340±40 | |
| Dubnium | Db | 105 | 262 | ||
| Dysprosium | Dy | 66 | 162.50(3) | 1412 | 2567 |
| Einsteinium | Es | 99 | 252 | ||
| Erbium | Er | 68 | 167.26(3) | 1529 | 2868 |
| Europium | Eu | 63 | 151.965(9) | 822 | 1527 |
| Fermium | Fm | 100 | 257 | ||
| Fluorine | F | 9 | 18.9984032(9) | -219.62 | -188.4 |
| Francium | Fr | 87 | 223 | 27 | 677 |
| Gadolinium | Gd | 64 | 157.25(3) | 1313 | 3273 |
| Gallium | Ga | 31 | 69.723(1) | 29.78 | 2403 |
| Germanium | Ge | 32 | 72.61(2) | 937.4 | 2830 |
| Gold | Au | 79 | 196.96654(3) | 1064.434 | 2808±2 |
| Hafnium | Hf | 72 | 178.49(2) | 2227±20 | 4602 |
| Hassium | Hs | 108 | 265 | ||
| Helium | He | 2 | 4.002602(2) | -272.226 amt | -268.934 |
| Holmium | Ho | 67 | 164.93032(3) | 1474 | 2700 |
| Hydrogen | H | 1 | 1.00794(7) | -259.34 | -252.87 |
| Indium | In | 49 | 114.82(1) | 156.61 | 2080 |
| Iodine | I | 53 | 126.90447(3) | 113.5 | 184.35 |
| Iridium | Ir | 77 | 192.22(3) | 2410 | 4130 |
| Iron | Fe | 26 | 55.847(3) | 1535 | 2750 |
| Krypton | Kr | 36 | 83.80(1) | -156.6 | -152.30±0.10 |
| Lanthanum | La | 57 | 138.9055(2) | 918 | 3464 |
| Lawrencium | Lr | 103 | 262 | ||
| Lead | Pb | 82 | 207.2(1) | 327.502 | 1740 |
| Lithium | Li | 3 | 6.941(2) | 180.54 | 1342 |
| Lutetium | Lu | 71 | 174.967(1) | 1663 | 3402 |
| Magnesium | Mg | 12 | 24.3050(6) | 648.8±0.5 | 1090 |
| Manganese | Mn | 25 | 54.93805(1) | 1244±3 | 1962 |
| Meitnerium | Mt | 109 | 266 | ||
| Mendelevium | Md | 101 | 258 | ||
| Mercury | Hg | 80 | 200.59(3) | -38.87 | 356.58 |
| Molybdenum | Mo | 42 | 95.94(1) | 2617 | 4612 |
| Neodymium | Nd | 60 | 144.24(3) | 1021 | 3074 |
| Neon | Ne | 10 | 20.1797(6) | -248.67 | -246.048 |
| Neptunium | Np | 93 | 237.048 | 640±1 | 3902 |
| Nickel | Ni | 28 | 58.6934 | 1453 | 2732 |
| Niobium | Nb | 41 | 92.90638(2) | 2468±10 | 4742 |
| Nitrogen | N | 7 | 14.00674(7) | -209.86 | -195.8 |
| Nobelium | No | 102 | 259 | ||
| Osmium | Os | 76 | 190.2(1) | 3045±30 | 5027±100 |
| Oxygen | O | 8 | 15.9994(3) | -218.4 | -182.962 |
| Palladium | Pd | 46 | 106.42(1) | 1554 | 3140 |
| Phosphorus | P | 15 | 30.973762(4) | 44.1(white) | 280(white) |
| Platinum | Pt | 78 | 195.08(3) | 1772 | 3827±100 |
| Plutonium | Pu | 94 | 244 | 641 | 3232 |
| Polonium | Po | 84 | 209 | 254 | 962 |
| Potassium | K | 19 | 39.0983(1) | 63.25 | 759.9 |
| Praseodymium | Pr | 59 | 140.90765(3) | 931 | 3520 |
| Promethium | Pm | 61 | 145 | 1042 | 3000(estimate) |
| Protactinium | Pa | 91 | 231.0359 | 1600 | |
| Radium | Ra | 88 | 226.025 | 700 | 1140 |
| Radon | Rn | 86 | 222 | -71 | -61.8 |
| Rhenium | Re | 75 | 186.207(1) | 3180 | 5627(estimate) |
| Rhodium | Rh | 45 | 102.90550(3) | 1965±3 | 3727±100 |
| Rubidium | Rb | 37 | 85.4678(3) | 38.89 | 686 |
| Ruthenium | Ru | 44 | 101.07(2) | 2310 | 3900 |
| Rutherfordium | Rf | 104 | 261 | ||
| Samarium | Sm | 62 | 150.36(3) | 1074 | 1794 |
| Scandium | Sc | 21 | 44.955910(9) | 1541 | 2836 |
| Seaborgium | Sg | 106 | 263 | ||
| Selenium | Se | 34 | 78.96(3) | 217 | 684.9±1.0 |
| Silicon | Si | 14 | 28.0855(3) | 1410 | 2355 |
| Silver | Ag | 47 | 107.8682(2) | 961.93 | 2212 |
| Sodium | Na | 11 | 22.989768(6) | 97.81±0.03 | 882.9 |
| Strontium | Sr | 38 | 87.62(1) | 769 | 1384 |
| Sulfur | S | 16 | 32.066(6) | 112.8 | 444.674 |
| Tantalum | Ta | 73 | 180.9479(1) | 2996 | 5425±100 |
| Technetium | Tc | 43 | 98 | 2172 | 4877 |
| Tellurium | Te | 52 | 127.60(3) | 449.5±0.3 | 989.8±3.8 |
| Terbium | Tb | 65 | 158.92534(3) | 1356 | 3230 |
| Thallium | Tl | 81 | 204.3833(2) | 303.5 | 1457±10 |
| Thorium | Th | 90 | 232.0381(1) | 1750 | 3800(app.) |
| Thulium | Tm | 69 | 168.93421(3) | 1545 | 1950 |
| Tin | Sn | 50 | 118.710(7) | 231.9681 | 2270 |
| Titanium | Ti | 22 | 47.88(3) | 1660±10 | 32878 |
| Tungsten | W | 74 | 183.85(3) | 3410±20 | 5660 |
| Uranium | U | 92 | 238.0289(1) | 1132±0.8 | 3818 |
| Vanadium | V | 23 | 50.9415(1) | 1890±10 | 3380 |
| Xenon | Xe | 54 | 131.29(2) | -111.9 | -107.1±0.3 |
| Ytterbium | Yb | 70 | 173.04(3) | 819 | 1196 |
| Yttrium | Y | 39 | 88.90585(2) | 1552 | 5338 |
| Zinc | Zn | 30 | 65.39(2) | 419.58 | 907 |
| Zirconium | Zr | 40 | 91.224(2) | 1852±2 | 4377 |
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