1、族周期IA1元素周期表018电子层0族电子数11H氢1.008IIA2金属元素原子序数元素符号（红色表示放射性元素）元素名称（注*的表示人造元素）相对原子质量（加括号的数据为该放非金属元素92U铀238.0射性元素半衰期最长同位素的质量数）IIIA13IVA14VA15VIA16VIIA172He氦4.003K223Li锂6.9414Be铍9.0125B硼10.816C碳12.017N氮14.018O氧16.009F氟19.0010Ne氖20.18LK82311Na钠22.9912Mg镁24.31IIIB3IVB4VB5VIB6VIIB7VIII8910IB11IIB1213Al铝26.9814Si硅28.0915P磷30.9716S硫32.0617Cl氯35.4518Ar氩39.95MLK882419K钾39.1020Ca钙40.0821Sc钪44.9622Ti钛47.8723V钒50.9424Cr铬52.0025Mn锰54.9426Fe铁55.8527Co钴58.9328Ni镍58.6929Cu铜63.55
2、30Zn锌65.4131Ga镓69.7232Ge锗72.6433As砷74.9234Se硒78.9635Br溴79.9036Kr氪83.80NMLK81882537Rb铷85.4738Sr锶87.6239Y钇88.9140Zr锆91.2241Nb铌92.9142Mo钼95.9443Tc锝9844Ru钌102.945Rh铑102.946Pd钯106.447Ag银107.948Cd镉112.449In铟114.850Sn锡118.751Sb锑121.852Te碲127.653I碘126.954Xe氙131.3ONMLK8181882655Cs铯132.956Ba钡137.35771LaLu镧系72Hf铪178.573Ta钽180.974W钨183.875Re铼186.276Os锇190.277Ir铱192.278Pt铂195.179Au金197.080Hg汞200.681Tl铊204.482Pb铅207.283Po铋209.084Po钋20985At砹21086Rn氡222PONMLK818321882787Fr
3、钫22388Rr镭22689103AcLr锕系104Rf钅卢*261105Db钅杜*262106Sg钅喜*266107Bh钅波*264108Hs钅黑*277109Mt钅麦*268110Ds钅达*281111Rg钅仑*272112Cn钅哥*285113Uut*284114Uuq*289115Uup*288116Uuh*292117Uus*291118Uuo*293镧系57La镧138.958Ce铈140.159Pr镨140.960Nd钕144.261Pm钷14562Sm钐150.463Eu铕152.064Gd钆157.365Tb铽158.966Dy镝162.567Ho钬164.968Er铒167.369Tm铥168.970Yb镱173.071Lu镥175.0锕系89Ac锕22790Th钍232.091Pa镤231.092U铀238.093Np镎23794Pu钚24495Am镅*24396Cm锔*24797Bk锫*14798Cf锎*25199Es锿*252100Fm镄*257101Md钔*258102No锘*259103Lr铹*262