IA00族118电子数1H原子序数92U非金属金属2He氢IIA铀IIIAIVAVAVIAVIIA氦1.0082238过渡元素13141516174.0033Li4Be5B6C7N8O9F10Ne锂铍硼碳氮氧氟氖6.9419.01210.8112.0114.0116.0019.0020.1811Na12Mg13Al14Si15P16S17Cl18Ar钠镁IIIBIVBVBVIBVIIBIBIIB铝硅磷硫氯氩22.9924.31345678910111226.9828.0930.9732.0635.4539.9519K20Ca21Sc22Ti23V24Cr25Mn26Fe27Co28Ni29Cu30Zn31Ga32Ge33As34Se35Br36Kr钾钙钪钛钒铬锰铁钴镍铜锌镓锗砷硒溴氪39.4040.0844.9647.8750.9452.0054.9455.8558.9358.6963.5565.4169.7272.6474.9278.9679.9083.8037Rb38Sr39Y40Zr41Nb42Mo43Tc44Ru45Rh46Pd47Ag48Cd49In50Sn51Sb52Te53I54Xe铷锶钇锆铌钼锝钌铑钯银镉铟锡锑碲磺氙85.4787.6288.9191.2292.9195.94[98]101.1102.9106.4107.9112.4114.8118.7121.8127.6126.9131.355Cs56Ba57~5172Hf73Ta74W75Re76Os77Ir78Pt79Au80Hg81Tl82Pb83Bi84Po85At86Rn铯钡La~Lu铪钽钨铼锇铱铂金汞铊铅铋钋砹氡132.9137.3镧系178.5180.9183.8186.2190.2192.2195.1197.0200.6204.4207.2209.0[209][210][222]87Fr88Ra89~103104Rf105Db106Sg107Bh108Hs109Mt110Ds111Rg112Uub钫镭Ac~Lr*********……[223][226]锕系[261][262][266][264][277][268][281][272][285]57La58Ce59Pr60Nd61Pm62Sm63Eu64Gd65Tb66Dy67Ho68Er69Tm70Yb71Lu镧铈镨钕钷钐铕钆铽镝钬铒铥镱镥注:138.9140.1140.9144.2[145]150.4152.0157.3158.9162.5164.9167.3168.9173.0175.089Ac90Th91Pa92U93Np94Pu95Am96Cm97Bk98Cf99Es100Fm101Md102No103Lr锕钍镤铀镎钚镅*锔*锫*锎*锿*镄*钔*锘*铹*[227]232.0231.0238.0[237][244][243][247][247][251][252][257][258][259][262]锕系67电子层VIII镧系12345原子名称,注*的是人造元素元素符号,红色指放射性元素相对原子质量(加括号的数据为该放射性元素半衰期最长同位素的质量数)相对原子质量录自2001年国际原子量表,并全部取4位有效数字。元素周期表818321882KLKMLKNMLKONMLKPONMLK282882818828181882