-!元素的精确质量数及同位素丰度AluminumAl(27)26.981541100.00AntimonySb(121)120.90382457.30Sb(123)122.90422242.70ArgonAr(36)35.9675460.34Ar(38)37.9627320.063Ar(40)39.96238399.60ArsenicAs(75)74.921596100.00BariumBa(130)129.9062770.11Ba(132)131.9050420.10Ba(134)133.9044902.42Ba(135)134.9056686.59Ba(136)135.9045567.85Ba(137)136.90581611.23Ba(138)137.90523671.70BerylliumBe(9)9.012183100.00BismuthBi(209)208.980388100.00BoronB(10)10.01293819.80B(11)11.00930580.20BromineBr(79)78.91833650.69Br(81)80.91629049.31-!CadmiumCd(106)105.9064611.25Cd(110)109.90300712.49Cd(111)110.90418212.80Cd(112)111.90276124.13Cd(113)112.90440112.22Cd(114)113.90336128.73Cd(116)115.9047587.49CalciumCa(40)39.96259196.95Ca(42)41.9586220.65Ca(43)42.9587700.14Ca(44)43.9554852.086Ca(46)45.9536890.004Ca(48)47.9525320.19CarbonC(12)12.00000098.90C(13)13.0033551.10CeriumCe(136)135.9071400.19Ce(138)137.9059960.25Ce(140)139.90544288.48Ce(142)141.90924911.08CesiumCs(133)132.905433100.00ChlorineCl(35)34.96885375.77Cl(37)36.96590324.23ChromiumCr(50)49.9460464.35Cr(52)51.94051083.79Cr(53)52.9406519.50Cr(54)53.9388822.36CobaltCo(59)58.933198100.00CopperCu(63)62.92959969.17Cu(65)64.92779230.83-!DysprosiumDy(156)155.9242870.060Dy(158)157.9244120.10Dy(160)159.9252032.34Dy(161)160.92693918.90Dy(162)161.92680525.50Dy(163)162.92873724.90Dy(164)163.92918328.20ErbiumEr(162)161.9287870.14Er(164)163.9292111.61Er(166)165.93030533.60Er(167)166.93206122.95Er(168)167.93238326.80Er(170)169.93547614.90EuropiumEu(151)150.91986047.80Eu(153)152.92124352.20FluorineF(19)18.998403100.00GalliumGa(69)68.92558160.10Ga(71)70.92470139.90GadoliniumGd(152)151.9198030.200Gd(154)153.9208762.18Gd(155)154.82262914.80Gd(156)155.92213020.47Gd(157)156.92396715.65Gd(158)157.92411124.84Gd(160)159.92706121.86GermaniumGe(70)69.92425020.50Ge(72)71.92208027.40Ge(73)72.9234647.80Ge(74)73.92117936.50Ge(76)75.9214037.80GoldAu(197)196.966560100.00-!HafniumHf(174)173.9400650.16Hf(176)175.9414205.20Hf(177)176.94323318.60Hf(178)177.94371027.10Hf(179)178.94582713.74Hf(180)179.94656135.20HeliumHe(3)3.016029.0001He(4)4.002603100.00HolmiumHo(165)164.930332100.00HydrogenH(1)1.00782599.99H(2)2.0141020.015IndiumIn(113)112.9040564.30In(115)114.90387595.70IodineI(127)126.904477100.00IridiumIr(191)190.96060337.30Ir(193)192.96294262.70IronFe(54)53.9396125.80Fe(56)55.93493991.72Fe(57)56.9353962.20Fe(58)57.9332780.28KryptonKr(78)77.9203970.35Kr(80)79.9163752.25Kr(82)81.91348311.60Kr(83)82.91413411.50Kr(84)83.91150657.00Kr(86)85.91061417.30LanthanumLa(138)137.9071140.09La(139)138.90635599.91LeadPb(204)203.9730371.40Pb(206)205.97445524.10Pb(207)206.97588522.10-!Pb(208)207.97664152.40LithiumLi(6)6.0151237.42Li(7)7.01600592.58LutetiumLu(175)174.94078597.40Lu(176)175.9426942.60MagnesiumMg(24)23.98504578.90Mg(25)24.98583910.00Mg(26)25.98259511.10ManganeseMn(55)54.938046100.00MercuryHg(196)195.9658120.15Hg(198)197.96676010.10Hg(199)198.96826917.00Hg(200)199.96831623.10Hg(201)200.97029313.20Hg(202)201.97063229.65Hg(204)203.9734816.80MolybdenumMo(92)91.90680914.84Mo(94)93.9050869.25Mo(95)94.90583815.92Mo(96)95.90467616.68Mo(97)96.9060189.55Mo(98)97.90540524.13Mo(100)99.9074739.63NeodymiumNd(142)141.90773127.13Nd(143)142.90982312.18Nd(144)143.91009623.80Nd(145)144.9125828.30Nd(146)145.91312617.19Nd(148)147.9169015.76Nd(150)149.9209005.64-!NeonNe(20)19.99243990.60Ne(21)20.9938450.26Ne(22)21...
