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Actinium | Ac | 89 | Radioactive element (28.44). |
Aluminium | Al | 13 | Base metal (Chapter 76). |
Americium | Am | 95 | Radioactive element (28.44). |
Antimony | Sb | 51 | Base metal (81.10). |
Argon | Ar | 18 | Rare gas (28.04). |
Arsenic | As | 33 | Non.metal (28.04). |
Astatine | At | 85 | Radioactive element (28.44). |
Barium | Ba | 56 | Alkaline.earth metal (28.05). |
Berkelium | Bk | 97 | Radioactive element (28.44). |
Beryllium | Be | 4 | Base metal (81.12). |
Bismuth | Bi | 83 | Base metal (81.06). |
Boron | B | 5 | Non.metal (28.04). |
Bromine | Br | 35 | Non.metal (28.01). |
Cadmium | Cd | 48 | Base metal (81.07). |
Caesium | Cs | 55 | Alkali metal (28.05). |
Calcium | Ca | 20 | Alkaline.earth metal (28.05). |
Californium | Cf | 98 | Radioactive element (28.44). |
Carbon | C | 6 | Non.metal (28.03). (But see 38.01 for artificial graphite.) |
Cerium | Ce | 58 | Rare.earth metal (28.05). |
Chlorine | Cl | 17 | Non.metal (28.01). |
Chromium | Cr | 24 | Base metal (81.12). |
Cobalt | Co | 27 | Base metal (81.05). |
Copper | Cu | 29 | Base metal (Chapter 74). |
Curium | Cm | 96 | Radioactive element (28.44). |
Dysprosium | Dy | 66 | Rare.earth metal (28.05). |
Einsteinium | Es | 99 | Radioactive element (28.44). |
Erbium | Er | 68 | Rare.earth metal (28.05). |
Europium | Eu | 63 | Rare.earth metal (28.05). |
Fermium | Fm | 100 | Radioactive element (28.44). |
Fluorine | F | 9 | Non.metal (28.01). |
Francium | Fr | 87 | Radioactive element (28.44). |
Gadolinium | Gd | 64 | Rare.earth metal (28.05). |
Gallium | Ga | 31 | Base metal (81.12). |
Germanium | Ge | 32 | Base metal (81.12). |
Gold | Au | 79 | Precious metal (71.08). |
Hafnium | Hf | 72 | Base metal (81.12). |
Helium | He | 2 | Rare gas (28.04). |
Holmium | Ho | 67 | Rare.earth metal (28.05). |
Hydrogen | H | 1 | Non.metal (28.04). |
Indium | In | 49 | Base metal (81.12) |
Iodine | I | 53 | Non.metal (28.01). |
Iridium | Ir | 77 | Precious metal (71.10). |
Iron | Fe | 26 | Base metal (Chapter 72). |
Krypton | Kr | 36 | Rare gas (28.04). |
Lanthanum | La | 57 | Rare.earth metal (28.05). |
Lawrencium | Lr | 103 | Radioactive element (28.44). |
Lead | Pb | 82 | Base metal (Chapter 78). |
Lithium | Li | 3 | Alkali metal (28.05). |
Lutetium | Lu | 71 | Rare.earth metal (28.05). |
Magnesium | Mg | 12 | Base metal (81.04). |
Manganese | Mn | 25 | Base metal (81.11). |
Mendelevium | Md | 101 | Radioactive element (28.44). |
Mercury | Hg | 80 | Metal (28.05). |
Molybdenum | Mo | 42 | Base metal (81.02). |
Neodymium | Nd | 60 | Rare.earth metal (28.05). |
Neon | Ne | 10 | Rare gas (28.04). |
Neptunium | Np | 93 | Radioactive element (28.44). |
Nickel | Ni | 28 | Base metal (Chapter 75). |
Niobium | Nb | 41 | Base metal (81.12). |
Nitrogen | N | 7 | Non- metal (28.04). |
Nobelium | No | 102 | Radioactive element (28.44). |
Osmium | Os | 76 | Precious metal (71.10). |
Oxygen | O | 8 | Non.metal (28.04). |
Palladium | Pd | 46 | Precious metal (71.10). |
Phosphorus | P | 15 | Non.metal (28.04). |
Platinum | Pt | 78 | Precious metal (71.10). |
Plutonium | Pu | 94 | Radioactive element (28.44). |
Polonium | Po | 84 | Radioactive element (28.44). |
Potassium | K | 19 | Alkali metal (28.05). |
Praseodymium | Pr | 59 | Rare.earth metal (28.05). |
Promethium | Pm | 61 | Radioactive element (28.44). |
Protactinium | Pa | 91 | Radioactive element (28.44). |
Radium | Ra | 88 | Radioactive element (28.44). |
Radon | Rn | 86 | Radioactive element (28.44). |
Rhenium | Re | 75 | Base metal (81.12). |
Rhodium | Rh | 45 | Precious metal (71.10). |
Rubidium | Rb | 37 | Alkali metal (28.05). |
Ruthenium | Ru | 44 | Precious metal (71.10). |
Samarium | Sm | 62 | Rare.earth metal (28.05). |
Scandium | Sc | 21 | Classified with the rare.earth metals (28.05). |
Selenium | Se | 34 | Non.metal (28.04). |
Silicon | Si | 14 | Non.metal (28.04). |
Silver | Ag | 47 | Precious metal (71.06). |
Sodium | Na | 11 | Alkali metal (28.05). |
Strontium | Sr | 38 | Alkaline.earth metal (28.05). |
Sulphur | S | 16 | Non.metal (28.02). (But see 25.03 for crude sulphur). |
Tantalum | Ta | 73 | Base metal (81.03). |
Technetium | Tc | 43 | Radioactive element (28.44). |
Tellurium | Te | 52 | Non.metal (28.04). |
Terbium | Tb | 65 | Rare.earth metal (28.05). |
Thallium | Tl | 81 | Base metal (81.12). |
Thorium | Th | 90 | Radioactive element (28.44). |
Thulium | Tm | 69 | Rare‑earth metal (28.05). |
Tin | Sn | 50 | Base metal (Chapter 80). |
Titanium | Ti | 22 | Base metal (81.08). |
Tungsten | W | 74 | Base metal (81.01). |
Uranium | U | 92 | Radioactive element (28.44). |
Vanadium | V | 23 | Base metal (81.12). |
Xenon | Xe | 54 | Rare gas (28.04). |
Ytterbiium | Yb | 70 | Rare‑earth metal (28.05). |
Yttrium | Y | 39 | Classified with the rare‑earth metals (28.05). |
Zinc | Zn | 30 | Base metal (Chapter 79). |
Zirconium | Zr | 40 | Base metal (81.09). |