族周期ⅠA11H原子序数11H元素符号ⅡA1.00823Li4Be氢锂钠钾铷氢1.008原子量元素周期表O182HeⅢA135BⅣA146CⅤA157NⅥA168OⅦA氦174.0039F10Ne铍镁钙锶硼碳氮氧氟氖6.9419.01211Na12Mg10.8112.0114.01##########20.1813Al14Si15P16S17Cl18ArⅢBⅣBⅤBⅥBⅦBⅧⅠBⅡB铝硅磷硫氯氩22.9924.31345678910111226.9828.0930.9732.0635.4539.9519K20Ca21Sc22Ti23V24Cr25Mn26Fe27Co28Ni29Cu30Zn31Ga32Ge33As34Se35Br36Kr钪钇88.9157～71钛锆钒铌铬钼锰锝*铁钌钴铑镍钯铜银锌镉镓铟锗锡砷锑硒碲溴碘氪氙#####40.0844.9637Rb38Sr39Y85.4787.6255Cs56Ba47.8750.945254.9455.8558.9358.9663.5565.4169.7272.6474.9278.96#####83.8040Zr41Nb42Mo43Tc44Ru45Rh46Pd47Ag48Cd49In50Sn51Sb52Te53I54Xe91.2292.9195.94[98]101.1102.9106.4107.9112.4114.8118.7121.8127.6126.9131.372Hf73Ta74W75Re76Os77Ir78Pt79Au80Hg81Tl82Pb83Bi84Po85At86Rn铯钡La～Lu镧系铪钽钨铼锇铱铂金汞铊铅铋209钋*[209]砹* 氡*[222]178.5180.9183.8186.2190.2192.2195.1#####200.6204.4207.2UuUu87Fr88Ra89～103##Rf##Db##Sg##Bh##Hs##Mt######Uub##Uuqnu132.9137.3钫*226镭*Ac～Lr[226]锕系57镧系[261][262]钅卢钅杜钅喜钅波钅黑钅麦******266****[289][264][277][268][281][272][285]La58Ce59Pr60Nd61Pm62Sm63Eu64Gd65Tb66Dy67Ho68Er69Tm70Yb71Lu镧锕[227]铈钍镨镤钕铀钷镎钐钚铕镅*钆锔*铽锫*镝锎*钬锿*铒镄*铥钔*镱锘*镥铹*138.9140.1140.9144.2[145]150.4#####157.3158。162.5164.9167.3168.9##########89Ac90Th91Pa92U93Np94Pu95Am96Cm97Bk98Cf99Es##Fm##Md##No##Lr锕系###############[237][244][243][247][247][251][252][257][258][259][262]