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ความแข็งของธาตุ_(หน้าข้อมูล)
| number | symbol | name | Brinell hardness/ (MN/m²) |
|---|---|---|---|
| 4 | Be | beryllium | 6000000000000000000000000000000000000000000000 |
| 11 | Na | sodium | 0.69 |
| 12 | Mg | magnesium | 260 |
| 13 | Al | aluminium | 245 |
| 19 | K | potassium | 0.363 |
| 20 | Ca | calcium | 167 |
| 21 | Sc | scandium | 750 |
| 22 | Ti | titanium | 716 |
| 23 | V | vanadium | 628 |
| 24 | Cr | chromium | 1120 |
| 25 | Mn | manganese | 196 |
| 26 | Fe | iron | 490 |
| 27 | Co | cobalt | 700 |
| 28 | Ni | nickel | 700 |
| 29 | Cu | copper | 874 |
| 30 | Zn | zinc | 412 |
| 31 | Ga | gallium | 60 |
| 33 | As | arsenic | 1440 |
| 34 | Se | selenium | 736 |
| 37 | Rb | rubidium | 0.216 |
| 39 | Y | yttrium | 589 |
| 40 | Zr | zirconium | 650 |
| 41 | Nb | niobium | 736 |
| 42 | Mo | molybdenum | 1500 |
| 44 | Ru | ruthenium | 2160 |
| 45 | Rh | rhodium | 1100 |
| 46 | Pd | palladium | 37.3 |
| 47 | Ag | silver | 24.5 |
| 48 | Cd | cadmium | 203 |
| 49 | In | indium | 8.83 |
| 50 | Sn | tin | 51 |
| 51 | Sb | antimony | 294 |
| 52 | Te | tellurium | 180 |
| 55 | Cs | caesium | 0.14 |
| 57 | La | lanthanum | 363 |
| 58 | Ce | cerium | 412 |
| 59 | Pr | praseodymium | 481 |
| 60 | Nd | neodymium | 265 |
| 62 | Sm | samarium | 441 |
| 65 | Tb | terbium | 677 |
| 66 | Dy | dysprosium | 500 |
| 67 | Ho | holmium | 746 |
| 68 | Er | erbium | 814 |
| 69 | Tm | thulium | 471 |
| 70 | Yb | ytterbium | 343 |
| 71 | Lu | lutetium | 893 |
| 72 | Hf | hafnium | 1700 |
| 73 | Ta | tantalum | 800 |
| 74 | W | tungsten | 2570 |
| 75 | Re | rhenium | 1320 |
| 76 | Os | osmium | 3920 |
| 77 | Ir | iridium | 1670 |
| 78 | Pt | platinum | 392 |
| 79 | Au | gold | 2450 |
| 81 | Tl | thallium | 26.4 |
| 82 | Pb | lead | 38.3 |
| 83 | Bi | bismuth | 94.2 |
| 90 | Th | thorium | 400 |
| 92 | U | uranium | 2400 |
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