Tous les Éléments Chimiques

1 H hydrogène 1.008 2 He hélium 4.003 3 Li lithium 7 4 Be béryllium 9.012 5 B bore 10.81 6 C carbone 12.011 7 N azote 14.007 8 O oxygène 15.999 9 F fluor 18.998 10 Ne néon 20.18 11 Na sodium 22.99 12 Mg magnésium 24.305 13 Al aluminium 26.982 14 Si silicium 28.085 15 P phosphore 30.974 16 S soufre 32.07 17 Cl chlore 35.45 18 Ar argon 39.9 19 K potassium 39.098 20 Ca calcium 40.08 21 Sc scandium 44.956 22 Ti titane 47.867 23 V vanadium 50.941 24 Cr chrome 51.996 25 Mn manganèse 54.938 26 Fe fer 55.84 27 Co cobalt 58.933 28 Ni nickel 58.693 29 Cu cuivre 63.55 30 Zn zinc 65.4 31 Ga gallium 69.723 32 Ge germanium 72.63 33 As arsenic 74.922 34 Se sélénium 78.97 35 Br brome 79.9 36 Kr krypton 83.8 37 Rb rubidium 85.468 38 Sr strontium 87.62 39 Y yttrium 88.906 40 Zr zirconium 91.22 41 Nb niobium 92.906 42 Mo molybdène 95.95 43 Tc technétium 96.906 44 Ru ruthénium 101.1 45 Rh rhodium 102.906 46 Pd palladium 106.42 47 Ag argent 107.868 48 Cd cadmium 112.41 49 In indium 114.818 50 Sn étain 118.71 51 Sb antimoine 121.76 52 Te tellure 127.6 53 I iode 126.904 54 Xe xénon 131.29 55 Cs césium 132.905 56 Ba baryum 137.33 57 La lanthane 138.905 58 Ce cérium 140.116 59 Pr praséodyme 140.908 60 Nd néodyme 144.24 61 Pm prométhium 144.913 62 Sm samarium 150.4 63 Eu europium 151.964 64 Gd gadolinium 157.25 65 Tb terbium 158.925 66 Dy dysprosium 162.5 67 Ho holmium 164.93 68 Er erbium 167.26 69 Tm thulium 168.934 70 Yb ytterbium 173.05 71 Lu lutécium 174.967 72 Hf hafnium 178.49 73 Ta tantale 180.948 74 W tungstène 183.84 75 Re rhénium 186.207 76 Os osmium 190.2 77 Ir iridium 192.22 78 Pt platine 195.08 79 Au or 196.967 80 Hg mercure 200.59 81 Tl thallium 204.383 82 Pb plomb 207 83 Bi bismuth 208.98 84 Po polonium 208.982 85 At astate 209.987 86 Rn radon 222.018 87 Fr francium 223.02 88 Ra radium 226.025 89 Ac actinium 227.028 90 Th thorium 232.038 91 Pa protactinium 231.036 92 U uranium 238.029 93 Np neptunium 237.048 94 Pu plutonium 244.064 95 Am américium 243.061 96 Cm curium 247.07 97 Bk berkélium 247.07 98 Cf californium 251.08 99 Es einsteinium 252.083 100 Fm fermium 257.095 101 Md mendélévium 258.098 102 No nobélium 259.101 103 Lr lawrencium 266.12 104 Rf rutherfordium 267.122 105 Db dubnium 268.126 106 Sg seaborgium 269.128 107 Bh bohrium 270.133 108 Hs hassium 269.134 109 Mt meitnérium 277.154 110 Ds darmstadtium 282.166 111 Rg roentgenium 282.169 112 Cn copernicium 286.179 113 Nh nihonium 286.182 114 Fl flérovium 290.192 115 Mc moscovium 290.196 116 Lv livermorium 293.205 117 Ts tennesse 294.211 118 Og oganesson 295.216