thumbnail|La taola periodica dei elementi On ełemento chimego xe na sostanza fata de un solo tipo de atomo, i cuałi i xe diferenzia par el numero atomego.
Fin desso ghi nemo catà 118.
Se riporta de sèvito na tabela che la rancura alcune informasion sui elementi, elencà par nùmaro atomico; par un elenco in ordine alfabetico varda la relativa categoria.
NElementoSinboloPezo atomegoConfigurasioneletronegaEI1 (eV)AE (eV)Χ (Pauling)Ano de descoverta1IdrogenoH1,00791s13,598440,7542,117662ElioHe4,00261s224,58741 − 0,5 -18953LitioLi6,941[He]2s5,391720,6181,018174BerillioBe9,0122[He]2s29,32263 − 0,51,517975BoroB10,81[He]2s22p8,298030,2772,018086CarbonioC12,011[He]2s22p211,260301,2632,5antichità7AzotoN14.0067[He]2s22p314,53414 − 0,073,017728OssigenoO15,9994[He]2s22p413,618061,461 3,517749FluoroF18,9984[He]2s22p517,422823,399 4,0188610NeonNe20,179[He]2s22p621,56454 − 1,2 -189811SodioNa22,98977[Ne]3s5,139080,5480,9180712MagnesioMg24,305[Ne]3s27,64624 − 0,41,2180813AlluminioAl26,9815[Ne]3s23p5,985770,4411,5182514SilicioSi28,0855[Ne]3s23p28,151691,3851,8182415FosforoP30,9738[Ne]3s23p310,486690,7472,1166916SolfaroS32,06[Ne]3s23p410,360012,0772,5antichità17CloroCl35,453[Ne]3s23p512,967643,6173,0177418ArgonAr39,948[Ne]3s23p615,759 − 1,0 -189419PotasioK39,0983[Ar]4s4,340660,5020,8180720CalcioCa40,08[Ar]4s26,11316 −0,31,0180821ScandioSc44,9559[Ar]3d4s26,561440,1881,3187922TitanioTi47,88[Ar]3d24s26,82820,079 1,5179123VanadioV50,9415[Ar]3d34s26,7460,524 1,6183024CromoCr51,996[Ar]3d54s6,766640,6661,6179825ManganezeMn54,9380[Ar]3d54s27,4340201,5177426FeroFe55,847[Ar]3d64s27,90240,1631,8antichità27CobaltoCo58,9332[Ar]3d74s27,88100,6601,9173728NichelNi58,69[Ar]3d84s27,63981,1611,9175129RameCu63,546[Ar]3d104s7,726381,2271,9antichità30ZincoZn65.38[Ar]3d104s29,394001,6XV secolo31GalioGa69,72[Ar]3d104s24p5,999300,3001,6187532GermanioGe72,59[Ar]3d104s24p27,8991,2331,8188633ArsenicoAs74,9216[Ar]3d104s24p39,81520,8082,0XV secolo34SelenioSe78,96[Ar]3d104s24p49,752382,0212,4181835BromoBr79,904[Ar]3d104s24p511,813813,3652,8182636KriptonKr83,80[Ar]3d104s24p613,99961 − 1,0 -189837RubidioRb85,4678[Kr]5s4,177130,4860,8186038StronsioSr87,62[Kr]5s25,6948401,0180839ItrioY88,9059[Kr]4d5s26,2170,3071,2179440ZirconioZr91,224[Kr]4d25s26,633900,426 1,4178941NiobioNb92,9064[Kr]4d35s26,758850,892 1,6180142MolibdenoMo95,94[Kr]4d55s7,092430,7451,8178243TecnesioTc(98)[Kr]4d55s27,280,5491,9193944RutenioRu101,9055[Kr]4d65s27,360501,0502,2184445RodioRh102,9055[Kr]4d75s27,458901,1372,2180346PaladioPd106,42[Kr]4d105s08,33690,5572,2180347ArzentoAg107,868[Kr]4d105s7,576241,3021,9antichità48CadmioCd112,41[Kr]4d105s28,993701,7181749IndioIn114,82[Kr]4d105s25p5,786360,3001,7186350StagnoSn118,71[Kr]4d105s25p27,343811,1121,8antichità51AntimonioSb121,75[Kr]4d105s25p38,641,0701,9XV secolo52TelurioTe127,60[Kr]4d105s25p49,00961,9712,1178353IodioI126,9045[Kr]4d105s25p510,451263,0602,5181154XenoXe131,29[Kr]4d105s25p612,129870 -189855CezioCs132,9054[Xe]6s3,893900,4720,7186056BarioBa137,33[Xe]6s25,2117000,9180857LantanioLa138,9055[Xe]5d6s25,57700,4701,1183958CerioCe140,12[Xe]4f5d6s25,53870,9551,1180359PraseodimioPr140,9077[Xe]4f36s25,464< 0,5181,1188560NeodimioNd144,24[Xe]4f46s25,5250< 0,518 1,2188561PromesioPm(145)[Xe]4f56s25,55< 0,518 1,2194562SamarioSm150,36[Xe]4f66s25,6437< 0,518 1,2188063EuropioEu151,96[Xe]4f76s25,6704< 0,518 1,1190164GadolinioGd157,25[Xe]4f75d6s26,1502< 0,5181,1188065TerbioTb158,9254[Xe]4f96s25,8639< 0,5181,2184366DisprozioDy162,50[Xe]4f106s25,939< 0,5181,2188667OlmioHo164,9304[Xe]4f116s26,0216< 0,5181,2187968ErbioEr167,26[Xe]4f126s26,1078< 0,5181,2184369TulioTm168,9342[Xe]4f136s26,184311,0291,2187970IterbioYb173,04[Xe]4f146s26,25416< 0,5181,1187971LutesioLu174,967[Xe]4f145d6s25,4260,521,2190772AfnioHf178,49[Xe]4f145d26s26,825070 1,3192373TantalioTa180,9479[Xe]4f145d36s27,890,32 1,5180274TungstenoW183,85[Xe]4f145d66s7,980,8151,7178375RenioRe186,207[Xe]4f145d56s27,880,1501,9192576OsmioOs190,2[Xe]4f145d66s28,71,1002,2180477IridioIr192,22[Xe]4f145d76s29,11,5652,2180478PlatinoPt195,08[Xe]4f145d106s09,02,1282,2174879OroAu196,9665[Xe]4f145d106s9,225672,3092,4antichità80MercurioHg200,59[Xe]4f145d106s210,4375001,9antichità81TalioTl204,383[Xe]4f145d106s26p6,108290,1991,8186182PionboPb207,2[Xe]4f145d106s26p27,41670,3641,9antichità83BismutoBi208,9804[Xe]4f145d106s26p37,28550,9451,9175384PolonioPo(209)[Xe]4f145d106s26p48,416711,9002,0189885AstatoAt(210)[Xe]4f145d106s26p59,22,7992,2194086RadonRn(222)[Xe]4f145d106s26p610,748500 -190087FransioFr(223)[Rn]7s4,0712n.d.0,7193988RadioRa226,0254[Rn]7s25,27892n.d.0,9189889AtinioAc227,028[Rn]6d7s25,17n.d.1,1189990TorioTh232,0381[Rn]6d26s26,308n.d.1,3182891ProtoatinioPa231,0359[Rn]5f26d7s25,89n.d.1,4191792UranioU238,0289[Rn]5f36d7s26,19405n.d.1,4178993NetunioNp237,0482[Rn]5f46d7s26,2655n.d. 1,4194094PlutonioPu(244)[Rn]5f66s26,0262n.d. 1,3194095AmerisioAm(243)[Rn]5f77s25,9738n.d. 1,3194496CurioCm(247)[Rn]5f76d7s26,02n.d.1,3194497BerkelioBk(247)[Rn]5f97s26,229n.d.1,3194998CalifornioCf(251)[Rn]5f107s26,30n.d.1,3195099EinsteinioEs(252)[Rn]5f117s26,422n.d.1,31954100FermioFm(257)[Rn]5f127s26,50n.d.1,31954101MendelevioMd(258)[Rn]5f137s26,58n.d.1,31955102NobelioNo(259)[Rn]5f147s26,65n.d.1,31958103LaurensioLr(260)[Rn]5f146d7s2n.d.n.d.1,31961104RutherfordioRf(261)[Rn]5f146d27s2n.d.n.d.n.d.1968105DubnioDb(262)[Rn]5f146d37s2n.d.n.d. n.d.1970106SeaborzoSg(266)[Rn]5f146d47s2n.d.n.d.n.d.1974107BohrioBh(264)[Rn]5f146d57s2n.d.n.d.n.d.1981108HasioHs(269)[Rn]5f146d67s2n.d.n.d.n.d.1984109MeitnerioMt(268)[Rn]5f146d77s2n.d.n.d.n.d.1982110DarmstadtioDs(269)[Rn]5f146d97sn.d.n.d.n.d.1994111RoentgenioRg(272)[Rn]5f146d107sn.d.n.d.n.d.1994112CopernisioCn(277)[Rn]5f146d107s2n.d.n.d.n.d.1996113NihonioNh(284)[Rn]5f146d107s27pn.d.n.d.n.d.2004114FlerovioFl(289)[Rn]5f146d107s27p2n.d.n.d.n.d.1999115MoscovioMc(288)[Rn]5f146d107s27p3n.d.n.d.n.d.2004116LivermorioLv(292)[Rn]5f146d107s27p4n.d.n.d.n.d.2000117TenesoTs(310)[Rn]5f146d107s27p5n.d.n.d.n.d.2010118OganesonOg(314)[Rn]5f146d107s27p6n.d.n.d.n.d.1999
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