族电子层0族电子数1H2He13141516173Li4Be5B6C7N8O9F10Ne11Na12Mg13Al14Si15P16S17Cl18Ar5678910111219K20Ca21Sc22Ti23V24Cr25Mn26Fe27Co28Ni29Cu30Zn31Ga32Ge33As34Se35Br36Kr37Rb38Sr39Y40Zr41Nb42Mo43Tc44Ru45Rh46Pd47Ag48Cd49In50Sn51Sb52Te53I54Xe55Cs56Ba72Hf73Ta74W75Re76Os77Ir78Pt79Au80Hg81Tl82Pb83Bi84Po85At86Rn87Fr88Ra104Rf105Db106Sg107Bh108Hs109Mt110Ds111Rg112Cn113Nh114Fl115Mc116LV117Ts118Og3s23p23s23p3铝硅ⅥBⅧⅦBⅠBⅡB4s24p4硫5s25p6131.383.80碘氙3s23p639.954s24p36s26p25d106s2铅汞89-103锕系137.3钡La-Lu40.086s26p3[209]砹57-71镧系200.6铋5s25p35s25p45s25p5121.8127.6126.974.9278.9679.90锑碲ⅢAⅣAⅤA3s23p4ⅣBⅤB2ⅡA3ⅢB铍2s29.012镁3s224.31磷20.18钋209.0204.4207.26s26p1氡6s26p6[222]3s23p535.453s23p44s24p56s26p46s26p5[210]砷硒溴26.9828.0930.9732.074s24p2ⅥAⅦA氯氩2s22p12s22p22s22p32s22p42s22p52s22p610.8112.0114.01碳氮氧硼16.00氦1s24.00319.00氟氖178.5180.95d106s1195.1197.0183.8186.2190.2192.25d66s25d96s1铊6s25d26s25d36s25d46s25d56s25d76s2102.9铱铂114.8106.4107.9112.4铪钽钨铼锇金5s25p287.6288.9191.2292.9195.94[99]101.14d85s14d55s1118.74d55s24d75s163.5565.39铑5s24d15s24d25s24d5s1铟银镉5s25p1钯4d104d105s14d105s2钙钪钛3d74s23d64s2钴69.7272.61锶钇锆铌钼锝*钌58.93锡44.9647.8750.9452.0054.9455.8558.693d34s23d54s13d54s2铜4s24p13d84s23d104s13d104s2锌钒铬锰铁镍镓镆*[277][268](6d87s2)[271](6d77s2)[272][285][284][289][288]镭Ac-Lr𬬻*𬬻*𬬻*𬬻*7s2(6d27s2)(6d47s2)(6d57s2)(6d67s2)𬬻*鿔*鉨*𬬻*鿔*锂7s1[223]4s2[226][265][268][271](6d37s2)3d14s23d24s2018KLKMLKNMLKONMLKPONMLK56711234氢1s11.0083s122.992s16.941钠铯6s1132.9钫39.10铷5s185.47钾4s1元素周期表[292][291][293]QPONMLK81832321882*𬬻**8181882818321882282882818824s24p6氪锗𬬻*𬬻*[270]ⅠA92U铀5f36d17s2238.0相对原子质量元素符号,红色指放射性元素外围电子层排布,括号指可能的电子层排布原子序数元素名称注*的是人造元素非金属金属过渡元素周期57La58Ce59Pr60Nd61Pm62Sm63Eu64Gd65Tb66Dy67Ho68Er69Tm70Yb71Lu89Ac90Th91Pa92U93Np94Pu95Am96Cm97Bk98Cf99Es100Fm101Md102No103Lr【注】1.相对原子质量录自2014年国际原子量表,并全部取4位有效数字。2.相对原子质量加括号的为放射性元素的半衰期最长的同位素的质量数。3.若后面元素无法显示汉字,请更新电脑字库。[257][258]5f107s25f117s25f127s2(5f137s2)[259][251][252][262][243]6d27s25f26d17s2[247][247]铹*167.3168.95f36d17s25f46d17s25f67s25f77s2镄*钔*锎*锿*(5f147s2)(5f146d17s2)锔*锫*162.5164.9铀镎钚镅5f76s17s25f97s2锘*镱镥4f146s24f145d16s2140.1140.9144.2[145]150.4152.0157.3158.9173.0175.04f96s2镝钬铒铥4f106s24f116s24f126s24f136s2铕铈镨钕钷4f15d16s24f36s24f46s24f56s24f66s24f76s2锕6d17s2[227]镧5d16s2钐232.0231.0238.0[237][244]钍镤钆铽4f75d16s2锕系镧系138.9