symbole = nom / masse atomique / numero atomique ( nombre de protons des le noyau ) 1 H = HIDROGENE / 1.00794 / 1 LI = LTHIUM / 6.941 / 3 NA = SODIUM / 22.96976 / 11 K = POTASSIUM /39.0983/ 19 RB = RUBIDUM /85.4678/ 37 CS = CESIUM /132.9054/ 55 FR = FRANCIUM /223/ 87 2 BE = BERILLIUM /9.012.182/ 4 MG = MAGNESOM /24.3050/ 12 CA = CALCIUM /40.078/ 20 SR = STRONTIUM /87.62/ 38 BA = BARIUM /137.327/ 56 RA = RADIUM /226/ 88 3 SC = SCANDUM /44.95591/ 21 Y = YTTRIUM /88.90585/ 39 ianthanides 57-71 # actindes 89 103 * 4 Ti = TITANE /47.867/ 22 Zr = ZIROONIUM /91.224/40 Hf = HAFNIUM /178.49/ 72 Rf = RUTHERFOEDIUM /261/ 194 5 V = VANADIUM /50.9415/ 23 Nb = NAODIUM /92.90638/ 41 Ta = TANTALE /180.9478/ 73 Db = DUBNIUM /262/ 105 6 Cr = CHROM /51.9962/ 24 Mo = MOLYBDENE /95.96/ 47 W = TUNGTENE /183.84/ 74 Sg = SEABRORGIUM /266/ 106 7 Mn = MANDANESE /54.93804/25 Tc = TECHNETIUM /98/43 Re = RHENIUM /186.207/75 Bh = BOHNIUM /264/ 107 8 Fe = FER /55.845/26 Ru = RUTHENIUM /101.07/ 44 Os = OSMIUM /192.217/ 77 Hs = HASSIUM /277/ 108 9 Co = COBALT /58.93319/ 27 Rh = RHODIUM /102.9055/ 45 Ir = IRIDIUM /192.217/ 77 Mt = MEITNERIUM /268/ 109 10 Ni = NICHEL /58.6934/ 28 Pd = PALLADIUM /106.42/ 42 Pt = PLATINE /195.084/ 78 Ds = DARMATADIUM /271/ 110 11 Cu = CUIVRE /63.545/ 29 Ag = ARGENT /107.84682/47 Au = OR /1969665/ 79 Rg = ROENTGENIUM /272/ 111 12 Zn = ZINC /6538/ 30 Cd = CADMIUM /112.441/ 48 Hg = MERCURE /200.59/ 80 Cn = COPERNICIUM /285/ 112 13 B = BORE /10.811/ 5 Al = ALUMINIUM /26.98153/ 13 Ga = GALUIUM /69.723/ 31 In = INDIUM /114.818/ 49 Tl = THALLIUM /204.3833/ 81 UUt= UNUNTRIUM /284/ 113 C = CARBON /12.0107/ 6 14 Si= SILICIUM /28.0855/14 GE= GERMANIUM /72.64/ 32 Sn= ETAIN /118.710/ 50 Pd= PLOMD /207.2/ 82 Fl= FLEROVIUM /289/ 114 N = AZOTE /14.0067/ 7 P = PHOSPHORE /30.97696/ 15 15 As= ARSENIC /74.92160/ 33 Sb= ANTIMIUM /121.760/ 51 BI= BESM /208.9804/ 83 UUP= UMUNPENTIUM /288/ 115 O = OXYGENE /15.9994/ 8 S = SOUFRE /32.065/16 Se = SELENIUM /78.96/34 16 Te = TELLUM /127.60/ 52 Po = POLOMIUM /210/ 84 Lv = LIVERMONRIUM /292/ 117 17 F = FLUOR /18.998403/ 9 Cl = CHLORE /35.453/ 17 Br = BROME /79.904/ 35 I = IODE /126.9044/ 53 At = ASTATE /210/ 85 UUs = UMUNSEPLIUM /292/ 117 18 He = HELIUM /4.OOO2602/ 2 Ne = NEON /20.1797/ 10 Ar = ARGON /39.948/ 18 Kr = LAYPTON /83.796/ 36 Xe = XENON /131.293/ 54 Rn = RADON /220/ 86 UUo = /294/ 118 # La = lanthane /138.9054/ 57 Ce = cerium /140.112/ 58 Pr = praseodyme/140.9076/ 59 Nd = neodyme /144.242/ 60 Pm = promethium /145/ 61 Sm = samarium /145 / 62 Eu = europium /151.964 / 63 Gd = gadolinium /157.25/ 64 Tb = terbium /158.9253/ 65 DY = dysprosium /162.500/ 66 Ho = holmium /164.9303/ 67 Er = erdium /167.259/ 68 Tm = thulium /168.9342/ 69 Yb = ytterbium /173.054/ 70 Lu = lutecium /174.9668/ 71 * Ac = actinium /227/89 Th = thorium /232.0380/90 Pa = protactinium /231.0358/91 U = uranium /238.0289/92 Np = neptunium /237/93 Pu = plutonium /244/94 Am = americium /243/95 Cm = curium /247/96 bK = berkelium /247/97 Cf = californium /251/98 Es = einsteinium /252/99 Fm = fermium /257/100 Md = mendelevium /258/101 No = nobelium /259/102 Lr = lawrencium /262/103 * metaux alcaline * alcaline terreux * meteaux pauvre * metaux de transition * metalloïdes * non metaux * halogenes * gaz rares