Question

元素的相对原子质量

Answer 1

1-56号元素的相对原子质量:1.氢H：1.00794；2.氦He:4.002602；3.锂Li:6.941；4.铍Be:9.012182；5.硼B:10.811；6.碳C:12.0107；7.氮N:14.0067；8.氧O:15.9994；9.氟F:18.9984032；10.氖Ne:20.1797；11.钠Na:22.98976928；12.镁Mg:24.3050；13.铝Al:26.9815386；14.硅Si:28.0855；15.磷P:30.973762；16.硫S:32.065；17.氯Cl:35.453；18.氩Ar:39.948；19.钾K:39.0983；20.钙Ca:40.078等。

21.钪Sc:44.955912；22.钛Ti:47.867；23.钒V:50.9415；24.铬Cr:51.9961；25.锰Mn:54.938045；26.铁Fe:55.845；27.钴Co:58.933195；28.镍Ni:58.6934；29.铜Cu:63.546；30.锌Zn:65.39；31.镓Ga:69.723；32.锗Ge:72.64；33.砷As:74.92160；34.硒Se:78.96；35.溴Br:79.904；36.氪Kr:83.798；37.铷Rb:85.4678；38.锶Sr:87.62；39.钇Y:88.90585；40.锆Zr:91.224；41.铌Nb:92.90638；42.钼Mo:95.94；43.锝Tc:[97.9072]；44.钌Ru:101.07；45.铑Rh:102.90550；46.钯Pd:106.42；47.银Ag:107.8682；48.镉Cd:112.411；49.铟In:114.818；50.锡Sn:118.710；51.锑Sb:121.760；52.碲Te:127.60；53.碘I:126.90447；54.氙Xe:131.293；55.铯Cs:132.9054519；56.钡Ba:137.327。

57-71号元素的相对原子质量：57.镧La:138.90547；58.铈Ce:140.116；59.镨Pr:140.90765；60.钕Nd:144.242；61.钷Pm:[145]；62.钐Sm:150.36；63.铕Eu:151.964；64.钆Gd:157.25；65.铽Tb:158.92535；66.镝Dy:162.500；67.钬Ho:164.93032；68.铒Er:167.259；69.铥Tm:168.93421；70.镱Yb:173.04；71.镥Lu:174.967。

72-88号元素的相对原子质量：72.铪Hf:178.49；73.钽Ta:180.94788；74.钨W:183.84；75.铼Re:186.207；76.锇Os:190.23；77.铱Ir:192.217；78.铂Pt:195.084；79.金Au:196.966569；80.汞Hg:200.59；81.铊Tl:204.3833；82.铅Pb:207.2；83.铋Bi:208.98040；84.钋Po:[208.9824]；85.砹At:[209.9871]；86.氡Rn:[222.0176]；87.钫Fr:[223]；88.镭Ra:[226]。

89-103号元素的相对原子质量：89.锕Ac:[227]；90.钍Th:232.03806；91.镤Pa:231.03588；92.铀U:238.02891；93.镎Np:238.8486；94.钚Pu:242.8798；95.镅Am:244.8594；96.锔Cm:246.911；97.锫Bk:248.9266；98.锎Cf:252.9578；99.锿Es:253.9656；100.镄Fm:259.0046；101.钔Md:260.0124；102.锘No:261.0202；103.铹Lr:264.0436。

104-118号元素（注*的是人造元素）的相对原子质量：104.钅卢*Rf:269.0826；105.钅杜*Db:270.0904；106.钅喜*Sg:273.1138；107.钅波*Bh:274.1216；108.钅黑*Hs:272.106；109.钅麦*Mt:278.1528；110.鐽*Ds:283.1918；111.錀*Rg:282.184；112.鎶*Cn:287.223；113.暂无Uut:286.2152；114.鈇*Fl:291.1964；115.暂无Uup:290.1888；116.鉝*Lv:295.2268；117.暂无Uus:293.2116；118.暂无Uuo:299.2572。