初三化学元素周期表原子序数元素符号元素名称相对原子质量元素名称读音1234567891011121314151617181920212223242526HHeLiBeBCNOFNeNaMgAlSiPSClArKCaScTiVCrMnFe氢氦锂铍硼碳氮氧氟氖钠镁铝硅磷硫氯氩钾钙钪钛钒铬锰铁1.00794.00266.9419.012210.81112.01114.00715.99918.99820.1722.989824.30526.98228.08530.97432.0635.45339.9439.09840.0844.95647.950.9451.99654.93855.84(qīng)(hài)(lǐ)(pí)(péng)(tàn)(dàn)(yǎng)(fú)(nǎi)(nà)(měi)(lǚ)(guī)(lín)(liú)(lǜ)(yà)(jiǎ)(gài)(kàng)(tài)(fán)(g?)(měng)(tiě)2728293031323334353637383940414243444546474849505152535455CoNiCuZnGaGeAsSeBrKrRbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXeCs钴镍铜锌镓锗砷硒溴氪铷锶钇锆铌钼锝钌铑钯银镉铟锡锑碲碘氙铯58.933258.6963.5465.3869.7272.574.92278.979.90483.885.46787.6288.90691.2292.906495.94(99)161.0102.906106.42107.868112.41114.82118.6121.7127.6126.905131.3132.905(gǔ)(ni?)(t?ng)(xīn)(jiā)(zhě)(shēn)(xī)(xiù)(k?)(rú)(sī)(yǐ)(gào)(ní)(mù)(d?)(liǎo)(lǎo)(bǎ)(yín)(g?)(yīn)(xī)(tī)(dì)(diǎn)(xiān)(s?)5657-71575859606162636465666768697071727374757677787980818283BaLa-LuLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBi钡镧系镧铈镨钕钷钐铕钆铽镝钬铒铥镱镥铪钽钨铼锇铱铂金汞铊铅铋137.33(b?i)138.9140.1140.9144.2(147)150.3151.96157.25158.9162.5164.9167.2168.9173.04174.967178.4180.947183.8186.207190.2192.2195.08196.967200.5204.3207.2208.98(lán)(shì)(pǔ)(nǚ)(pǒ)(shān)(yǒu)(gá)(t?)(dī)(huǒ)(ěr)(diū)(yì)(lǔ)(hā)(tǎn)(wū)(lái)(?)(yī)(b?)(jīn)(gǒng)(tā)(qiān)(bì)848586878889-1038990919293949596979899100101102103104105106107108109110111PoAtRnFrRaAc-LrAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtUunUuu钋砹氡钫镭锕系锕钍镤铀镎钚镅锔锫锎锿镄钔锘铹钅卢钅杜钅喜钅波钅黑钅麦(209)(201)(222)(223)226.03(pō)(ài)(dōng)(fāng)(l?i)(227)232.0231.0238.0(237)(244)(243)(247)(247)(251)(252)(257)(258)(259)(262)(257)(261)(262)(263)(262)(265)(281)(272)(ā)(tǔ)(pú)(y?u)(ná)(bù)(m?i)(jú)(p?i)(kāi)(āi)(f?i)(m?n)(nu?)(láo)(lú)(dù)(xǐ)(bō)(hēi)(mài)112114UubUuq(285)(289)（加括号的数据为该放射性元素半衰期最长同位素的质量数