原子序数元素符号元素名称1 - 1 1 2 号 元 素 电 子 排 布 式电子排布式电子排布式（原子实表示）原子序数元素符号元素名称电子排布式电子排布式（原子实表示）1H氢1s131Ga镓1s22s22p63s23p63d104s24p1Ar3d104s24p12He氦1s232Ge锗1s22s22p63s23p63d104s24p2Ar3d104s24p23Li锂1s22s1He2s133As砷1s22s22p63s23p63d104s24p3Ar3d104s24p34Be铍1s22s2He2s234Se硒1s22s22p63s23p63d104s24p4Ar3d104s24p45B硼1s22s22p1He2s22p135Br溴1s22s22p63s23p63d104s24p5Ar3d104s24p56C碳1s22s22p2He2s22p236Kr氪1s22s22p63s23p63d104s24p6Ar3d104s24p67N氮1s22s22p3He2s22p337Rb铷1s22s22p63s23p63d104s24p65s1Kr5s18O氧1s22s22p4He2s22p438Sr锶1s22s22p63s23p63d104s24p65s2Kr5s29F氟1s22s22p5He2s22p539Y钇1s22s22p63s23p63d104s24p64d15s2Kr4d15s210Ne氖1s22s22p6He2s22p640Zr锆1s22s22p63s23p63d104s24p64d25s2Kr4d25s211Na钠1s22s22p63s1Ne3s141Nb铌1s22s22p63s23p63d104s24p64d45s1Kr4d45s112Mg镁1s22s22p63s2Ne3s242Mo钼1s22s22p63s23p63d104s24p64d55s1Kr4d55s113Al铝1s22s22p63s23p1Ne3s23p143Tc锝1s22s22p63s23p63d104s24p64d55s2Kr4d55s214Si硅1s22s22p63s23p2Ne3s23p244Ru钌1s22s22p63s23p63d104s24p64d75s1Kr4d75s115P磷1s22s22p63s23p3Ne3s23p345Rh铑1s22s22p63s23p63d104s24p64d85s1Kr4d85s116S硫1s22s22p63s23p4Ne3s23p446Pd钯1s22s22p63s23p63d104s24p64d10Kr4d1017Cl氯1s22s22p63s23p5Ne3s23p547Ag银1s22s22p63s23p63d104s24p64d105s1Kr4d105s118Ar氩1s22s22p63s23p6Ne3s23p648Cd镉1s22s22p63s23p63d104s24p64d105s2Kr4d105s219K钾1s22s22p63s23p64s1Ar4s149In铟1s22s22p63s23p63d104s24p64d105s25p1Kr4d105s25p120Ca钙1s22s22p63s23p64s2Ar4s250Sn锡1s22s22p63s23p63d104s24p64d105s25p2Kr4d105s25p221Sc钪1s22s22p63s23p63d14s2Ar3d14s251Sb锑1s22s22p63s23p63d104s24p64d105s25p3Kr4d105s25p322Ti钛1s22s22p63s23p63d24s2Ar3d24s252Te碲1s22s22p63s23p63d104s24p64d105s25p4Kr4d105s25p423V钒1s22s22p63s23p63d34s2Ar3d34s253I碘1s22s22p63s23p63d104s24p64d105s25p5Kr4d105s25p524Cr铬1s22s22p63s23p63d54s1Ar3d54s154Xe氙1s22s22p63s23p63d104s24p64d105s25p6Kr4d105s25p625Mn锰1s22s22p63s23p63d54s2Ar3d54s255Cs铯1s22s22p63s23p63d104s24p64d105s25p66s1Xe6s126Fe铁1s22s22p63s23p63d64s2Ar3d64s256Ba钡1s22s22p63s23p63d104s24p64d105s25p66s2Xe6s227Co钴1s22s22p63s23p63d74s2Ar3d74s257La镧1s22s22p63s23p63d104s24p64d105s25p65d16s2Xe5d16s228Ni镍1s22s22p63s23p63d84s2Ar3d84s258Ce铈1s22s22p63s23p63d104s24p64d104f15s25p65d16s2Xe4f15d16s229Cu铜1s22s22p63s23p63d104s1Ar3d104s159Pr镨1s22s22p63s23p63d104s24p64d104f35s25p66s2Xe4f36s230Zn锌1s22s22p63s23p63d104s2Ar3d104s260Nd钕1s22s22p63s23p63d104s24p64d104f45s25p66s2Xe4f46s2原子序数元素符号元素名称电子排布式电子排布式（原子实表示）原子序数元素符号元素名称电 子 排 布 式电子排布式（原子实表示）61Pm钷1s22s22p63s23p63d104s24p64d104f55s25p66s2Xe4f56s291Pa镤1s22s22p63s23p63d104s24p64d104f145s25p65d105f26s26p66d17s2Rn5f26d17s262Sm钐1s22s22p63s23p63d104s24p64d104f65s25p66s2Xe4f66s292U铀1s22s22p63s23p63d104s24p64d104f145s25p65d105f36s26p66d17s2Rn5f36d17s263Eu铕1s22s22p63s23p63d104s24p64d104f75s25p66s2Xef76s293Np镎1s22s22p63s23p63d104s24p64d104f145s25p65d105f46s26p66d17s2Rn5f46d17s264Gd钆1s22s22p63s23p63d104s24p64d104f75s25p65d16s2Xe4f75d16s294Pu钚1s22s22p63s23p63d104s24p64d104f145s25p65d105f66s26p67s2Rn5f67s265Tb铽1s22s22p63s23p63d104s24p64d104f95s25p66s2Xe4f96s295Am镅1s22s22p63s23p63d104s24p64d104f145s25p65d105f76s26p67s2Rn5f77s266Dy镝1s22s22p63s23p63d104s24p64d104f105s25p66s2Xe4f106s296Cm锔1s22s22p63s23p63d104s24p64d104f145s25p65d105f76s26p66d17s2Rn5f76d17s267Ho钬1s22s22p63s23p63d104s24p64d104f115s25p66s2Xe4f116s297Bk锫1s22s22p63s23p63d104s24p64d104f145s25p65d105f96s26p67s2Rn5f97s268Er铒1s22s22p63s23p63d104s24p64d104f125s25p66s2Xe4f126s298Cf锎1s22s22p63s23p63d104s24p64d104f145s25p65d105f106s26p67s2Rn5f107s269Tm铥1s22s22p63s23p63d104s24p64d104f135s25p66s2Xe4f136s299Es锿1s22s22p63s23p63d104s24p64d104f145s25p65d105f116s26p67s2Rn5f117s270Yb镱1s22s22p63s23p63d104s24p64d104f145s25p66s2Xe4f146s2100Fm镄1s22s22p63s23p63d104s24p64d104f145s25p65d105f126s26p67s2Rn5f127s271Lu镥1s22s22p63s23p63d104s24p64d104f145s25p65d16s2Xe4f145d16s2101Md钔1s22s22p63s23p63d104s24p64d104f145s25p65d10(5f13)6s26p6(7s2)Rn(5f137s2)72Hf铪1s22s22p63s23p63d104s24p64d104f145s25p65d26s2Xe4f145d26s2102No锘1s22s22p63s23p63d104s24p64d104f145s25p65d10(5f14)6s26p6(7s2)Rn(5f147s2)73Ta钽1s22s22p63s23p63d104s24p64d104f145s25p65d36s2Xe4f1