Elements table data used in the X-ray Optics Calculator
| Atomic number Z |
Symbol | Name | Atomic weight | Density, g/cm^3 |
Specific heat, J/(g*K) |
Thermal conductivity, W/(m*K) |
| 1 | H | Hydrogen | 1.00794 | 0.0708 | 14.304 | 0.1805 |
| 2 | He | Helium | 4.0026 | 0.122 | 5.193 | 0.1513 |
| 3 | Li | Lithium | 6.941 | 0.533 | 3.582 | 85 |
| 4 | Be | Beryllium | 9.01218 | 1.845 | 1.825 | 190 |
| 5 | B | Boron | 10.811 | 2.34 | 1.026 | 27 |
| 6 | C | Carbon (diamond | 12.011 | 3.51 | 0.709 | 2300 |
| 7 | N | Nitrogen | 14.0067 | 0.81 | 1.042 | 0.02583 |
| 8 | O | Oxygen | 15.9994 | 1.14 | 0.92 | 0.02658 |
| 9 | F | Fluorine | 18.998403 | 1.108 | 0.824 | 0.0277 |
| 10 | Ne | Neon | 20.179 | 1.207 | 1.03 | 0.0491 |
| 11 | Na | Sodium | 22.98977 | 0.969 | 1.23 | 140 |
| 12 | Mg | Magnesium | 24.305 | 1.735 | 1.02 | 160 |
| 13 | Al | Aluminum | 26.98154 | 2.6941 | 0.9 | 235 |
| 14 | Si | Silicon | 28.0855 | 2.3283 | 0.7 | 150 |
| 15 | P | Phosphorus | 30.97376 | 1.82 | 0.769 | 0.236 |
| 16 | S | Sulfur | 32.066 | 2.07 | 0.71 | 0.205 |
| 17 | Cl | Chlorine | 35.4527 | 1.56 | 0.48 | 0.0089 |
| 18 | Ar | Argon | 39.948 | 1.4 | 0.52 | 0.01772 |
| 19 | K | Potassium | 39.0983 | 0.86 | 0.757 | 100 |
| 20 | Ca | Calcium | 40.078 | 1.55 | 0.647 | 200 |
| 21 | Sc | Scandium | 44.9559 | 2.98 | 0.568 | 16 |
| 22 | Ti | Titanium | 47.88 | 4.53 | 0.523 | 22 |
| 23 | V | Vanadium | 50.9415 | 6.1 | 0.489 | 31 |
| 24 | Cr | Chromium | 51.996 | 7.18 | 0.449 | 94 |
| 25 | Mn | Manganese | 54.938 | 7.43 | 0.48 | 7.8 |
| 26 | Fe | Iron | 55.847 | 7.86 | 0.449 | 80 |
| 27 | Co | Cobalt | 58.9332 | 8.9 | 0.421 | 100 |
| 28 | Ni | Nickel | 58.6934 | 8.876 | 0.444 | 91 |
| 29 | Cu | Copper | 63.546 | 8.94 | 0.385 | 400 |
| 30 | Zn | Zinc | 65.38 | 7.112 | 0.388 | 120 |
| 31 | Ga | Gallium | 69.723 | 5.877 | 0.371 | 29 |
| 32 | Ge | Germanium | 72.59 | 5.32674 | 0.32 | 60 |
| 33 | As | Arsenic | 74.9216 | 5.72 | 0.33 | 50 |
| 34 | Se | Selenium | 78.96 | 4.78 | 0.32 | 0.52 |
| 35 | Br | Bromine | 79.904 | 3.11 | 0.226 | 0.12 |
| 36 | Kr | Krypton | 83.8 | 2.6 | 0.248 | 0.00943 |
| 37 | Rb | Rubidium | 85.4678 | 1.529 | 0.363 | 58 |
| 38 | Sr | Strontium | 87.62 | 2.54 | 0.3 | 35 |
| 39 | Y | Yttrium | 88.9059 | 4.456 | 0.3 | 17 |
| 40 | Zr | Zirconium | 91.224 | 6.494 | 0.278 | 21.22 |
| 41 | Nb | Niobium | 92.9064 | 8.55 | 0.265 | 54 |
| 42 | Mo | Molybdenum | 95.94 | 10.2 | 0.25 | 139 |
| 43 | Tc | Technetium | 98 | 11.48 | 0.24 | 51 |
| 44 | Ru | Ruthenium | 101.07 | 12.39 | 0.238 | 120 |
| 45 | Rh | Rhodium | 102.9055 | 12.39 | 0.242 | 150 |
| 46 | Pd | Palladium | 106.42 | 12 | 0.244 | 72 |
| 47 | Ag | Silver | 107.8682 | 10.48 | 0.232 | 430 |
| 48 | Cd | Cadmium | 112.41 | 8.63 | 0.233 | 97 |
| 49 | In | Indium | 114.82 | 7.3 | 0.233 | 82 |
| 50 | Sn | Tin | 118.69 | 7.3 | 0.228 | 67 |
| 51 | Sb | Antimony | 121.75 | 6.679 | 0.207 | 24 |
| 52 | Te | Tellurium | 127.6 | 6.23 | 0.202 | 3 |
| 53 | I | Iodine | 126.9045 | 4.92 | 0.145 | 0.449 |
| 54 | Xe | Xenon | 131.29 | 3.52 | 0.158 | 0.00565 |
| 55 | Cs | Cesium | 132.9054 | 1.87 | 0.24 | 36 |
| 56 | Ba | Barium | 137.33 | 3.5 | 0.204 | 18 |
| 57 | La | Lanthanum | 138.9055 | 6.127 | 0.19 | 13 |
| 58 | Ce | Cerium | 140.12 | 6.637 | 0.19 | 11 |
| 59 | Pr | Praseodymium | 140.908 | 6.761 | 0.193 | 13 |
| 60 | Nd | Neodymium | 144.24 | 6.994 | 0.19 | 17 |
| 61 | Pm | Promethium | 145 | 7.2 | 0 | 15 |
| 62 | Sm | Samarium | 150.36 | 7.51 | 0.197 | 13 |
| 63 | Eu | Europium | 151.96 | 5.228 | 0.182 | 14 |
| 64 | Gd | Gadolinium | 157.25 | 7.8772 | 0.236 | 11 |
| 65 | Tb | Terbium | 158.9254 | 8.214 | 0.18 | 11 |
| 66 | Dy | Dysprosium | 162.5 | 8.525 | 0.173 | 11 |
| 67 | Ho | Holmium | 164.9304 | 8.769 | 0.165 | 16 |
| 68 | Er | Erbium | 167.26 | 9.039 | 0.168 | 15 |
| 69 | Tm | Thulium | 168.9342 | 9.294 | 0.16 | 17 |
| 70 | Yb | Ytterbium | 173.04 | 6.953 | 0.155 | 39 |
| 71 | Lu | Lutetium | 174.967 | 9.811 | 0.15 | 16 |
| 72 | Hf | Hafnium | 178.49 | 13.29 | 0.14 | 23 |
| 73 | Ta | Tantalum | 180.9479 | 16.624 | 0.14 | 57 |
| 74 | W | Tungsten | 183.85 | 19.3 | 0.13 | 170 |
| 75 | Re | Rhenium | 186.207 | 20.98 | 0.137 | 48 |
| 76 | Os | Osmium | 190.2 | 22.53 | 0.13 | 88 |
| 77 | Ir | Iridium | 192.22 | 22.39 | 0.13 | 150 |
| 78 | Pt | Platinum | 195.08 | 21.41 | 0.13 | 72 |
| 79 | Au | Gold | 196.9665 | 18.85 | 0.128 | 320 |
| 80 | Hg | Mercury | 200.59 | 13.522 | 0.14 | 8.3 |
| 81 | Tl | Thallium | 204.383 | 11.83 | 0.129 | 46 |
| 82 | Pb | Lead | 207.2 | 11.33 | 0.129 | 35 |
| 83 | Bi | Bismuth | 208.9804 | 9.73 | 0.122 | 8 |
| 84 | Po | Polonium | 209 | 9.3 | 0 | 0 |
| 86 | Rd | Radon | 222 | 4.4 | 0.094 | 0.00361 |
| 88 | Ra | Radium | 226.0254 | 5 | 0.094 | 19 |
| 89 | Ac | Actinium | 227.0278 | 10.05 | 0.12 | 12 |
| 90 | Th | Thorium | 232.0381 | 11.7 | 0.113 | 54 |
| 91 | Pa | Protactinium | 231.0359 | 15.34 | 0 | 47 |
| 92 | U | Uranium | 238.0289 | 18.92 | 0.12 | 27 |
| 93 | Np | Neptunium | 237.0482 | 20.21 | 0 | 6 |
| 94 | Pu | Plutonium | 244 | 19.8 | 0.13 | 6 |