Á kim 5. Boron (B) 14. Silicon (Si) 32. Germanium (Ge) 33. Arsenic (As) 51. Antimony (Sb) 52. Tellurium (Te) 85. Astatine (At) Phi kim 1. Hidrogen (H) 2. 2Helium (He) 6. Carbon (C) 7. Nitrogen (N) 8. Oxygen (O) 9. Fluorine (F) 10. Neon (Ne) 15. Phosphorus (P) 16. Sulfur (S) 17. Chlorine (Cl) 18. Argon (Ar) 34. Selenium (Se) 35. Bromine (Br0 36. Krypton (Kr) 53. Iodion (I) 54. Xenon (Xe) 86. Astatine (Rn) Kim loại STT Tên Kí hiệu 3 Lithium Li
Á kim Boron (B) 14 Silicon (Si) 32 Germanium (Ge) 33 Arsenic (As) 51 Antimony (Sb) 52 Tellurium (Te) 85 Astatine (At) Phi kim Hidrogen (H) 2Helium (He) Carbon (C) Nitrogen (N) Oxygen (O) Fluorine (F) 10 Neon (Ne) 15 Phosphorus (P) 16 Sulfur (S) 17 Chlorine (Cl) 18 Argon (Ar) 34 Selenium (Se) 35 Bromine (Br0 36 Krypton (Kr) 53 Iodion (I) 54 Xenon (Xe) 86 Astatine (Rn) Kim loại STT Tên Lithium Kí hiệu Li Beryllium Be 11 Sodium Na 12 Magnesium Mg 13 19 20 21 22 23 24 25 26 27 28 29 30 31 37 38 39 40 41 42 43 44 45 46 47 48 49 50 55 56 57 72 73 Aluminum Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Casium Barium Lanthanum Hafnium Tantanium Al K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Cs Ba La Hf Ta 74 75 76 77 78 79 80 81 82 83 84 87 88 89 104 105 106 107 108 109 110 58 59 60 61 62 63 64 65 66 67 68 69 70 Tungsten Rhennium Osmium Irdium Platinum Gold Mercury Thallium Lead Bismuth Polonium Francium Radium Actinium Unnilquadium Unnilpentium Unnilhexium Unnilseptium Unniloctium Unnilennium Unununium Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Yterrbium W Re Os Ir Pt Au Hg Tl Pb Bi Po Fr Ra Ac Unq Unp Unh Uns Uno Une Unn Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb 71 90 91 92 93 94 95 96 Lutetium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium 97 Berkelium 98 Californium 99 Einsteinium 100 Fermium 101 Mendelevium 102 Nobelium 103 Lawrencium Oxit cao nhất: R2O RO R2O3 RO2 Hợp chất khí với Hidro: RH4 RH3 RH2 RH Lu Th Pa U Np Pu Am Cm Bk Cf Es FM Md No Lr R2O5 RO3 R2O7