Alkali metal Alkaline earth metal Transition metal Post-transition metal Metalloid Non-metal Noble gas Halogen Lanthanide Аctinide 1,008 4,003 6,941 9,012 24,305 22,990 39,098 40,078 84,468 87,62 132,905 137,328 223,020 226,025 44,956 88,906 47,88 91,224 178,49 50,942 51,996 92,906 95,95 180,948 183,84 [267] [270] [269] [270] [270] [278] [281] [281] [285] [284] [289] [288] [293] [208,982] [294] [294] 186,207 98,907 54,938 55,845 101,07 190,23 192,217 102,906 58,933 58,693 106,42 195,085 196,967 107,868 63,546 65,38 112,414 200,592 204,383 114,818 69,723 26,982 10,811 12,011 28,086 72,631 118,711 207,2 208,980 121,760 74,992 30,974 14,007 15,999 18,998 35,453 32,066 78,971 79,904 126,904 127,6 209,987 222,018 131,249 84,798 39,948 20,180 174,967 [262] 259,101 173,055 258,1 169,934 167,259 257,095 [254] 164,930 126,904 128,905 247,070 247,070 157,25 151,964 150,36 244,064 237,048 144,913 144,243 238,029 231,036 140,908 140,116 232,038 227,028 138,905 243,061 251,080 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 97 98 99 100 102 104 105 106 107 108 109 110 111 114 115 116 117 57-71 89-103 96 101 103 112 113 118 Li Na K Rb Cs Fr Be Mg Ca Sr Ba Ra V Sc Ti Y Zr Hf Rf Db Ta Nb Cr Mo W Sg Bh Re Tc Mn Fe Ru Os Hs Co Rh Ir Mt Ds Pt Pd Ni Cu Ag Au Rg Cn Hg Cd Zn B Al Ga In Tl Nh Fl Pb Sn Ge Si C N P As Sb Bi Mc O S Se Te Po Lv Ts Og At Rn I Xe Br Kr Cl Ar F Ne He Ac Nd Pr Pa U La Ce Th Np Pm Sm Pu Am Eu Gd Cm Bk Tb Dy Cf Es Ho Er Fm Tm Md Yb Lu No Lr H Hydrogen Lithium Potassium Calcium Rubidium Strontium Cesium Barium Francium Radium Scandium Yttrium Titanium Vanadium Zirconium Niobium Hafnium Beryllium Sodium Magnesium Тantalum Rutherfordium Dubnium Seaborgium Tungsten Моlybdenum Chromium Manganese Iron Теchnetium Ruthenium Rhenium Osmium Hassium Bohrium Meitnerium Darmstadtium Platinum Iridium Rhodium Palladium Silver Cobalt Nickel Copper Zinc Cadmium Gold Mercury Roentgenium Copernicium Nihonium Tellurium Indium Gallium Aluminium Boron Carbon Silicon Germanium Tin Antinomy Bismuth Flerovium Moscovium Polonium Livermorium Thallium Arsenic Selenium Phosphorus Sulfur Nitrogen Oxygen Fluorine Neon Helium Chlorine Argon Bromine Krypton Iodine Xenon Astatine Radon Tennessine Oganesson Lanthanum Actinium Cerium Praseodymium Thorium Protactinium Uranium Neodymium Neptunium Promethium Samarium Plutonium Americium Europium Gadolinium Berkelium Californium Dysprosium Теrbium Holmium Einsteinium Erbium Fermium Mendelevium Lutetium Ytterbium Nobelium Lawrencium Lead Curium Thulium Number Symbol Name Atomic mass Radioactive 1 2 3 4 5 6 7 Periods I II III IV V VI VII VIII IX X XI XII XIII XIV XV XVI XVII XVII Interactive periodic table of chemical elements Press on the elements to find out more Groups Actinides Lanthanides Lanthanides Actinides