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Diferencia entre revisiones de «Elemento químico»

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Algunos elementos se han encontrado en la naturaleza, formando parte de sustancias simples o de [[compuesto químico|compuestos químicos]]. Otros han sido creados artificialmente en los [[acelerador de partículas|aceleradores de partículas]] o en [[reactor atómico|reactores atómicos]]. Estos últimos son inestables y sólo existen durante milésimas de segundo.
 
== Elementos químicos en la tabla periódica de los elementos ==
 
Los elementos químicos se encuentran clasificados en la [[tabla periódica de los elementos]].
A continuación se detallan los elementos conocidos, ordenados por su [[número atómico]].a
 
{|class="wikitable"|-bgcolor="#efefef" class="sortable wikitable"
|-{{highlight1}}
![[Número atómico]]
!Nombre
!Símbolo
!Periodo,<br />Grupo
![[Masa atómica]]<br />([[gramo|g]]/[[Mol]])
![[Densidad]]<br />(g/cm³)<br />a&nbsp;20°[[Grado Celsius|C]]
!Fusión<br />&nbsp;(°C)
!Ebullición<br />&nbsp;(°C)
!Año de su<br />descubrimiento
!Descubridor
 
|-style="background-color:#a0ffa0"
|1||[[Hidrógeno]]||H||1, 1||1.00794(7){{fn|2}} {{fn|3}} {{fn|4}}||0.084 g/l||-259.1||-252.69||1766||[[Henry Cavendish|Cavendish]]
|-style="background-color:#c0ffff"
|2||[[Helio]]||He||1, 18||4.002602(2){{fn|2}} {{fn|4}}||0.17 g/l||-272.2||-268.9||1895||[[William Ramsay|Ramsay]] y [[Per Teodor Cleve|Cleve]]
|-style="background-color:#ff6666"
|3||[[Litio]]||Li||2, 1||6.941(2){{fn|2}} {{fn|3}} {{fn|4}} {{fn|5}}||0.53||180.5||1317||1817||[[Johann Arfvedson|Arfwedson]]
|-style="background-color:#ffdead"
|4||[[Berilio]]||Be||2, 2||9.012182(3)||1.85||1278||2970||1797||[[Louis Nicolas Vauquelin|Vauquelin]]
|-style="background-color:#cccc99"
|5||[[Boro]]||B||2, 13||10.811(7){{fn|2}} {{fn|3}} {{fn|4}}||2.46||2300||2550||1808||[[Humphry Davy|Davy]] y [[Louis Joseph Gay-Lussac|Gay-Lussac]]
|-style="background-color:#a0ffa0"
|6||[[Carbono]]||C||2, 14||12.0107(8){{fn|2}} {{fn|4}}||3.51||3550||4827||Prehistoria||Desconocido
|-style="background-color:#a0ffa0"
|7||[[Nitrógeno]]||N||2, 15||14.0067(2){{fn|2}} {{fn|4}}||1.17 g/l||-209.9||-195.8||1772||[[Daniel Rutherford|Rutherford]]
|-style="background-color:#a0ffa0"
|8||[[Oxígeno]]||O||2, 16||15.9994(3){{fn|2}} {{fn|4}}||1.33 g/l||-218.4||-182.9||1774||[[Joseph Priestly|Priestly]] y [[Carl Wilhelm Scheele|Scheele]]
|-style="background-color:#ffff99"
|9||[[Flúor]]||F||2, 17||18.9984032(5)||1.58 g/l||-219.6||-188.1||1886||[[Henri Moissan|Moissan]]
|-style bgcolor="#c0ffff"
|10||[[Neón]]||Ne||2, 18||20.1797(6){{fn|2}} {{fn|3}}||0.84 g/l||-248.7||-246.1||1898||[[William Ramsay|Ramsay]] y [[Morris Travers|Travers]]
|-style="background-color:#ff6666"
|11||[[Sodio]]||Na||3, 1||22.98976928(2)||0.97||97.8||892||1807||[[Humphry Davy|Davy]]
|-style="background-color:#ffdead"
|12||[[Magnesio]]||Mg||3, 2||24.3050(6)||1.74||648.8||1107||1755||[[Joseph Black|Black]]
|-style="background-color:#cccccc"
|13||[[Aluminio]]||Al||3, 13||26.9815386(8)||2.70||660.5||2467||1825||[[Hans Christian Oersted|Oersted]]
|-style="background-color:#cccc99"
|14||[[Silicio]]||Si||3, 14||28.0855(3){{fn|4}}||2.33||1410||2355||1824||[[Jöns Jacob Berzelius|Berzelius]]
|-style="background-color:#a0ffa0"
|15||[[Fósforo (elemento)|Fósforo]]||P||3, 15||30.973762(2)||1.82||44 (P4)||280&nbsp;(P4)||1669||[[Henning Brand|Brand]]
|-style="background-color:#a0ffa0"
|16||[[Azufre]]||S||3, 16||32.065(5){{fn|2}} {{fn|4}}||2.06||113||444.7||Prehistoria||Desconocido
|-style="background-color:#ffff99"
|17||[[Cloro]]||Cl||3, 17||35.453(2){{fn|2}} {{fn|3}} {{fn|4}}||2.95 g/l||-34.6||-101||1774||[[Carl Wilhelm Scheele|Scheele]]
|-style="background-color:#c0ffff"
|18||[[Argón]]||Ar||3, 18||39.948(1){{fn|2}} {{fn|4}}||1.66 g/l||-189.4||-185.9||1894||[[William Ramsay|Ramsay]] y [[John Strutt|Rayleigh]]
|-style="background-color:#ff6666"
|19||[[Potasio]]||K||4, 1||39.0983(1)||0.86||63.7||774||1807||[[Humphry Davy|Davy]]
|-style="background-color:#ffdead"
|20||[[Calcio]]||Ca||4, 2||40.078(4){{fn|2}}||1.54||839||1487||1808||[[Humphry Davy|Davy]]
|-style="background-color:#ffc0c0"
|21||[[Escandio]]||Sc||4, 3||44.955912(6)||2.99||1539||2832||1879||[[Lars Fredrick Nilson|Nilson]]
|-style="background-color:#ffc0c0"
|22||[[Titanio]]||Ti||4, 4||47.867(1)||4.51||1660||3260||1791||[[William Gregor|Gregor]] y [[Martin Heinrich Klaproth|Klaproth]]
|-style="background-color:#ffc0c0"
|23||[[Vanadio]]||V||4, 5||50.9415(1)||6.09||1890||3380||1801||[[Andrés Manuel del Río|del Río]]
|-style="background-color:#ffc0c0"
|24||[[Cromo]]||Cr||4, 6||51.9961(6)||7.14||1857||2482||1797||[[Louis Nicolas Vauquelin|Vauquelin]]
|-style="background-color:#ffc0c0"
|25||[[Manganeso]]||Mn||4, 7||54.938045(5)||7.44||1244||2097||1774||[[Johan Gottlieb Gahn|Gahn]]
|-style="background-color:#ffc0c0"
|26||[[Hierro]]||Fe||4, 8||55.845(2)||7.87||1535||2750||Prehistoria||Desconocido
|-style="background-color:#ffc0c0"
|27||[[Cobalto]]||Co||4, 9||58.933195(5)||8.89||1495||2870||1735||[[Georg Brandt|Brandt]]
|-style="background-color:#ffc0c0"
|28||[[Níquel]]||Ni||4, 10||58.6934(2)||8.91||1453||2732||1751||[[Axel Fredrik Cronstedt|Cronstedt]]
|-style="background-color:#ffc0c0"
|29||[[Cobre]]||Cu||4, 11||63.546(3){{fn|4}}||8.92||1083.5||2595||Prehistoria||Desconocido
|-style="background-color:#ffc0c0"
|30||[[Zinc]]||Zn||4, 12||65.409(4)||7.14||419.6||907||Prehistoria||Desconocido
|-style="background-color:#cccccc"
|31||[[Galio]]||Ga||4, 13||69.723(1)||5.91||29.8||2403||1875||[[Paul Emile Lecoq de Boisbaudran|Lecoq de Boisbaudran]]
|-style="background-color:#cccc99"
|32||[[Germanio]]||Ge||4, 14||72.64(1)||5.32||937.4||2830||1886||[[Clemens Winkler|Winkler]]
|-style="background-color:#cccc99"
|33||[[Arsénico]]||As||4, 15||74.92160(2)||5.72||613||613<br />([[sublimación]])||ca. 1250||[[Albertus Magnus]]
|-style="background-color:#a0ffa0"
|34||[[Selenio]]||Se||4, 16||78.96(3){{fn|4}}||4.82||217||685||1817||[[Jöns Jacob Berzelius|Berzelius]]
|-style="background-color:#ffff99"
|35||[[Bromo]]||Br||4, 17||79.904(1)||3.14||-7.3||58.8||1826||[[Antoine Jérôme Balard|Balard]]
|-style="background-color:#c0ffff"
|36||[[Kriptón]]||Kr||4, 18||83.798(2){{fn|2}} {{fn|3}}||3.48 g/l||-156.6||-152.3||1898||[[William Ramsay|Ramsay]] y [[Morris Travers|Travers]]
|-style="background-color:#ff6666"
|37||[[Rubidio]]||Rb||5, 1||85.4678(3){{fn|2}}||1.53||39||688||1861||[[Robert Bunsen|Bunsen]] y [[Gustav Kirchhoff|Kirchhoff]]
|-style="background-color:#ffdead"
|38||[[Estroncio]]||Sr||5, 2||87.62(1){{fn|2}} {{fn|4}}||2.63||769||1384||1790||[[Adair Crawford|Crawford]]
|-style="background-color:#ffc0c0"
|39||[[Itrio]]||Y||5, 3||88.90585(2)||4.47||1523||3337||1794||[[Johan Gadolin|Gadolin]]
|-style="background-color:#ffc0c0"
|40||[[Circonio]]||Zr||5, 4||91.224(2){{fn|2}}||6.51||1852||4377||1789||[[Martin Heinrich Klaproth|Klaproth]]
|-style="background-color:#ffc0c0"
|41||[[Niobio]]||Nb||5, 5||92.906 38(2)||8.58||2468||4927||1801||[[Charles Hatchett|Hatchett]]
|-style="background-color:#ffc0c0"
|42||[[Molibdeno]]||Mo||5, 6||95.94(2){{fn|2}}||10.28||2617||5560||1778||[[Carl Wilhelm Scheele|Scheele]]
|-style="background-color:#ffc0c0"
|43||[[Tecnecio]]||Tc||5, 7||[98.9063]{{fn|1}}||11.49||2172||5030||1937||[[Carlo Perrier|Perrier]] y [[Emilio G. Segrè|Segrè]]
|-style="background-color:#ffc0c0"
|44||[[Rutenio]]||Ru||5, 8||101.07(2){{fn|2}}||12.45||2310||3900||1844||[[Karl Klaus|Klaus]]
|-style="background-color:#ffc0c0"
|45||[[Rodio]]||Rh||5, 9||102.90550(2)||12.41||1966||3727||1803||[[William Hyde Wollaston|Wollaston]]
|-style="background-color:#ffc0c0"
|46||[[Paladio]]||Pd||5, 10||106.42(1){{fn|2}}||12.02||1552||3140||1803||[[William Hyde Wollaston|Wollaston]]
|-style="background-color:#ffc0c0"
|47||[[Plata]]||Ag||5, 11||107.8682(2){{fn|2}}||10.49||961.9||2212||Prehistoria||Desconocido
|-style="background-color:#ffc0c0"
|48||[[Cadmio]]||Cd||5, 12||112.411(8){{fn|2}}||8.64||321||765||1817||[[Friedrich Strohmeyer|Strohmeyer]] y [[Karl Samuel Leberecht Hermann|Hermann]]
|-style="background-color:#cccccc"
|49||[[Indio (elemento)|Indio]]||In||5, 13||114.818(3)||7.31||156.2||2080||1863||[[Ferdinand Reich|Reich]] y [[Hieronymous Theodor Richter|Richter]]
|-style="background-color:#cccccc"
|50||[[Estaño]]||Sn||5, 14||118.710(7){{fn|2}}||7.29||232||2270||Prehistoria||Desconocido
|-style="background-color:#cccc99"
|51||[[Antimonio]]||Sb||5, 15||121.760(1){{fn|2}}||6.69||630.7||1750||Prehistoria||Desconocido
|-style="background-color:#cccc99"
|52||[[Telurio]]||Te||5, 16||127.60(3){{fn|2}}||6.25||449.6||990||1782||[[Franz-Joseph Müller von Reichenstein|von Reichenstein]]
|-style="background-color:#ffff99"
|53||[[Yodo]]||I||5, 17||126.90447(3)||4.94||113.5||184.4||1811||[[Bernard Courtois|Courtois]]
|-style="background-color:#c0ffff"
|54||[[Xenón]]||Xe||5, 18||131.293(6){{fn|2}} {{fn|3}}||4.49 g/l||-111.9||-107||1898||[[William Ramsay|Ramsay]] y [[Morris Travers|Travers]]
|-style="background-color:#ff6666"
|55||[[Cesio]]||Cs||6, 1||132.9054519(2)||1.90||28.4||690||1860||[[Gustav Kirchhoff|Kirchhoff]] y [[Robert Bunsen|Bunsen]]
|-style="background-color:#ffdead"
|56||[[Bario]]||Ba||6, 2||137.327(7)||3.65||725||1640||1808||[[Humphry Davy|Davy]]
|-style="background-color:#ffbfff"
|57||[[Lantano]]||La||6||138.90547(7){{fn|2}}||6.16||920||3454||1839||[[Carl Gustaf Mosander|Mosander]]
|-style="background-color:#ffbfff"
|58||[[Cerio]]||Ce||6||140.116(1){{fn|2}}||6.77||798||3257||1803||[[Wilhelm von Hisinger|von Hisinger]] y [[Jöns Jacob Berzelius|Berzelius]]
|-style="background-color:#ffbfff"
|59||[[Praseodimio]]||Pr||6||140.90765(2)||6.48||931||3212||1895||[[Carl Auer von Welsbach|von Welsbach]]
|-style="background-color:#ffbfff"
|60||[[Neodimio]]||Nd||6||144.242(3){{fn|2}}||7.00||1010||3127||1895||[[Carl Auer von Welsbach|von Welsbach]]
|-style="background-color:#ffbfff"
|61||[[Prometio]]||Pm||6||[146.9151]{{fn|1}}||7.22||1080||2730||1945||[[Jacob A. Marinsky|Marinsky]] y [[Lawrence E. Glendenin|Glendenin]]
|-style="background-color:#ffbfff"
|62||[[Samario]]||Sm||6||150.36(2){{fn|2}}||7.54||1072||1778||1879||[[Paul Emile Lecoq de Boisbaudran|Lecoq de Boisbaudran]]
|-style="background-color:#ffbfff"
|63||[[Europio]]||Eu||6||151.964(1){{fn|2}}||5.25||822||1597||1901||[[Eugène-Antole Demarçay|Demarçay]]
|-style="background-color:#ffbfff"
|64||[[Gadolinio]]||Gd||6||157.25(3){{fn|2}}||7.89||1311||3233||1880||[[Jean Charles Galissard de Marignac|de Marignac]]
|-style="background-color:#ffbfff"
|65||[[Terbio]]||Tb||6||158.92535(2)||8.25||1360||3041||1843||[[Carl Gustaf Mosander|Mosander]]
|-style="background-color:#ffbfff"
|66||[[Disprosio]]||Dy||6||162.500(1){{fn|2}}||8.56||1409||2335||1886||[[Paul Emile Lecoq de Boisbaudran|Lecoq de Boisbaudran]]
|-style="background-color:#ffbfff"
|67||[[Holmio]]||Ho||6||164.93032(2)||8.78||1470||2720||1878||[[Jacques Louis Soret|Soret]]
|-style="background-color:#ffbfff"
|68||[[Erbio]]||Er||6||167.259(3){{fn|2}}||9.05||1522||2510||1842||[[Carl Gustaf Mosander|Mosander]]
|-style="background-color:#ffbfff"
|69||[[Tulio]]||Tm||6||168.93421(2)||9.32||1545||1727||1879||[[Per Teodor Cleve|Cleve]]
|-style="background-color:#ffbfff"
|70||[[Iterbio]]||Yb||6||173.04(3){{fn|2}}||6.97||824||1193||1878||[[Jean Charles Galissard de Marignac|de Marignac]]
|-style="background-color:#ffbfff"
|71||[[Lutecio]]||Lu||6, 3||174.967(1){{fn|2}}||9.84||1656||3315||1907||[[Georges Urbain|Urbain]]
|-style="background-color:#ffc0c0"
|72||[[Hafnio]]||Hf||6, 4||178.49(2)||13.31||2150||5400||1923||[[Dirk Coster|Coster]] y [[George de Hevesy|de Hevesy]]
|-style="background-color:#ffc0c0"
|73||[[Tantalio]]||Ta||6, 5||180.9479(1)||16.68||2996||5425||1802||[[Anders Gustaf Ekeberg|Ekeberg]]
|-style="background-color:#ffc0c0"
|74||[[Wolframio]]||W||6, 6||183.84(1)||19.26||3407||5927||1783||[[Fausto Elhuyar|Elhuyar]]
|-style="background-color:#ffc0c0"
|75||[[Renio]]||Re||6, 7||186.207(1)||21.03||3180||5627||1925||[[Walter Noddack|Noddack]], [[Ida Tacke|Tacke]] y [[Otto Berg|Berg]]
|-style="background-color:#ffc0c0"
|76||[[Osmio]]||Os||6, 8||190.23(3){{fn|2}}||22.61||3045||5027||1803||[[Smithson Tennant|Tennant]]
|-style="background-color:#ffc0c0"
|77||[[Iridio]]||Ir||6, 9||192.217(3)||22.65||2410||4130||1803||[[Smithson Tennant|Tennant]]
|-style="background-color:#ffc0c0"
|78||[[Platino]]||Pt||6, 10||195.084(9)||21.45||1772||3827||1557||[[Julius Caesar Scaliger|Scaliger]]
|-style="background-color:#ffc0c0"
|79||[[Oro]]||Au||6, 11||196.966569(4)||19.32||1064.4||2940||Prehistoria||Desconocido
|-style="background-color:#ffc0c0"
|80||[[Mercurio (elemento)|Mercurio]]||Hg||6, 12||200.59(2)||13.55||-38.9||356.6||Prehistoria||Desconocido
|-style="background-color:#cccccc"
|81||[[Talio]]||Tl||6, 13||204.3833(2)||11.85||303.6||1457||1861||[[William Crookes|Crookes]]
|-style="background-color:#cccccc"
|82||[[Plomo]]||Pb||6, 14||207.2(1){{fn|2}} {{fn|4}}||11.34||327.5||1740||Prehistoria||Desconocido
|-style="background-color:#cccccc"
|83||[[Bismuto]]||Bi||6, 15||208.98040(1)||9.80||271.4||1560||1540||[[Claude Geoffroy|Geoffroy]]
|-style="background-color:#cccc99"
|84||[[Polonio]]||Po||6, 16||[208.9824]{{fn|1}}||9.20||254||962||1898||[[Marie Curie|Marie]] y [[Pierre Curie]]
|-style="background-color:#ffff99"
|85||[[Astato]]||At||6, 17||[209.9871]{{fn|1}}||||302||337||1940||[[Dale R. Corson|Corson]] y [[K. R. MacKenzie|MacKenzie]]
|-style="background-color:#c0ffff"
|86||[[Radón]]||Rn||6, 18||[222.0176]{{fn|1}}||9.23 g/l||-71||-61.8||1900||[[Friedrich Ernst Dorn|Dorn]]
|-style="background-color:#ff6666"
|87||[[Francio]]||Fr||7, 1||[223.0197]{{fn|1}}||||27||677||1939||[[Marguerite Perey|Perey]]
|-style="background-color:#ffdead"
|88||[[Radio (elemento)|Radio]]||Ra||7, 2||[226.0254]{{fn|1}}||5.50||700||1140||1898||[[Marie Curie|Marie]] y [[Pierre Curie]]
|-style="background-color:#ff99cc"
|89||[[Actinio]]||Ac||7||[227.0278]{{fn|1}}||10.07||1047||3197||1899||[[André-Louis Debierne|Debierne]]
|-style="background-color:#ff99cc"
|90||[[Torio]]||Th||7||232.03806(2){{fn|1}} {{fn|2}}||11.72||1750||4787||1829||[[Jöns Jacob Berzelius|Berzelius]]
|-style="background-color:#ff99cc"
|91||[[Protactinio]]||Pa||7||231.03588(2){{fn|1}}||15.37||1554||4030||1917||[[Frederick Soddy|Soddy]], [[John Cranston|Cranston]] y [[Otto Hahn|Hahn]]
|-style="background-color:#ff99cc"
|92||[[Uranio]]||U||7||238.02891(3){{fn|1}} {{fn|2}} {{fn|3}}||18.97||1132.4||3818||1789||[[Martin Heinrich Klaproth|Klaproth]]
|-style="background-color:#ff99cc"
|93||[[Neptunio]]||Np||7||[237.0482]{{fn|1}}||20.48||640||3902||1940||[[Edwin McMillan|McMillan]] y [[Philip Abelson|Abelson]]
|-style="background-color:#ff99cc"
|94||[[Plutonio]]||Pu||7||[244.0642]{{fn|1}}||19.74||641||3327||1940||[[Glenn T. Seaborg|Seaborg]]
|-style="background-color:#ff99cc"
|95||[[Americio]]||Am||7||[243.0614]{{fn|1}}||13.67||994||2607||1944||[[Glenn T. Seaborg|Seaborg]]
|-style="background-color:#ff99cc"
|96||[[Curio]]||Cm||7||[247.0703]{{fn|1}}||13.51||1340||||1944||[[Glenn T. Seaborg|Seaborg]]
|-style="background-color:#ff99cc"
|97||[[Berkelio]]||Bk||7||[247.0703]{{fn|1}}||13.25||986||||1949||[[Glenn T. Seaborg|Seaborg]]
|-style="background-color:#ff99cc"
|98||[[Californio]]||Cf||7||[251.0796]{{fn|1}}||15.1||900||||1950||[[Glenn T. Seaborg|Seaborg]]
|-style="background-color:#ff99cc"
|99||[[Einsteinio]]||Es||7||[252.0829]{{fn|1}}||||860||||1952||[[Glenn T. Seaborg|Seaborg]]
|-style="background-color:#ff99cc"
|100||[[Fermio]]||Fm||7||[257.0951]{{fn|1}}||||||||1952||[[Glenn T. Seaborg|Seaborg]]
|-style="background-color:#ff99cc"
|101||[[Mendelevio]]||Md||7||[258.0986]{{fn|1}}||||||||1955||[[Glenn T. Seaborg|Seaborg]]
|-style="background-color:#ff99cc"
|102||[[Nobelio]]||No||7||[259.1009]{{fn|1}}||||||||1958||[[Glenn T. Seaborg|Seaborg]]
|-style="background-color:#ff99cc"
|103||[[Lawrencio]]||Lr||7, 3||[260.1053]{{fn|1}}||||||||1961||[[Albert Ghiorso|Ghiorso]]
|-style="background-color:#ffc0c0"
|104||[[Rutherfordio]]||Rf||7, 4||[261.1087]{{fn|1}}||||||||1964/69||[[Georgii Flerov|Flerov]]
|-style="background-color:#ffc0c0"
|105||[[Dubnio]]||Db||7, 5||[262.1138]{{fn|1}}||||||||1967/70||[[Georgii Flerov|Flerov]]
|-style="background-color:#ffc0c0"
|106||[[Seaborgio]]||Sg||7, 6||[263.1182]{{fn|1}}||||||||1974||[[Georgii Flerov|Flerov]]
|-style="background-color:#ffc0c0"
|107||[[Bohrio]]||Bh||7, 7||[262.1229]{{fn|1}}||||||||1976||[[Y. Oganessian|Oganessian]]
|-style="background-color:#ffc0c0"
|108||[[Hassio]]||Hs||7, 8||[265]{{fn|1}}||||||||1984||[[Gesellschaft für Schwerionenforschung|GSI]] (*)
|-style="background-color:#ffc0c0"
|109||[[Meitnerio]]||Mt||7, 9||[266]{{fn|1}}||||||||1982||[[Gesellschaft für Schwerionenforschung|GSI]]
|-style="background-color:#ffc0c0"
|110||[[Darmstadtio]]||Ds||7, 10||[269]{{fn|1}}||||||||1994||[[Gesellschaft für Schwerionenforschung|GSI]]
|-style="background-color:#ffc0c0"
|111||[[Roentgenio]]||Rg||7, 11||[272]{{fn|1}}||||||||1994||[[Gesellschaft für Schwerionenforschung|GSI]]
|-style="background-color:#ffc0c0"
|112||[[Copernicio]]||Cn||7, 12||[285]{{fn|1}}||||||||1996||[[Gesellschaft für Schwerionenforschung|GSI]]
|-style="background-color:#cccccc"
|113||[[Ununtrio]]||Uut||7, 13||[284]{{fn|1}}||||||||2004||[[Joint Institute for Nuclear Research|JINR]] (*), [[Lawrence Livermore National Laboratory|LLNL]] (*)
|-style="background-color:#cccccc"
|114||[[Ununquadio]]||Uuq||7, 14||[289]{{fn|1}}||||||||1999||[[Joint Institute for Nuclear Research|JINR]]
|-style="background-color:#cccccc"
|115||[[Ununpentio]]||Uup||7, 15||[288]{{fn|1}}||||||||2004||[[Joint Institute for Nuclear Research|JINR]], [[Lawrence Livermore National Laboratory|LLNL]]
|-style="background-color:#cccccc"
|116||[[Ununhexio]]||Uuh||7, 16||[290]{{fn|1}}||||||||2006||[[Joint Institute for Nuclear Research|JINR]], [[Lawrence Livermore National Laboratory|LLNL]](**)
|-style="background-color:#fcfece"
|117||[[Ununseptio]]||Uus||7, 17||{{fn|1}}||||||||2009-2010||[[Joint Institute for Nuclear Research|JINR]]
|-style="background-color:#ecfefc"
|118||[[Ununoctio]]||Uuo||7, 18||[294]{{fn|1}}||||||||2006||[[Joint Institute for Nuclear Research|JINR]], [[Lawrence Livermore National Laboratory|LLNL]](**)
|}
 
(**)El descubrimiento del elemento 118 por un equipo del Lawrence Berkeley National Laboratory en 1999 fue más tarde revocado porque no fue posible repetir tal experimento.
[http://enews.lbl.gov/Science-Articles/Archive/118-retraction.html] Anulación de LBNL por el descubrimiento de 1999.
[http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRVCAN000074000004044602000001&idtype=cvips&gifs=yes] Experimento de JINR/LLNL (2005)
 
=== Acrónimos incluidos en la tabla ===
* GSI, Gesellschaft für Schwerionenforschung (Sociedad para la Investigación de Iones Pesados), Wixhausen, Darmstadt, [[Alemania]]
* JINR, Joint Institute for Nuclear Research (Instituto Unido para la Investigación Nuclear), Dubna, Moskvá Oblast, [[Rusia]]
* LLNL, Lawrence Livermore National Laboratory (Laboratorio Nacional Lawrence de Livermore) Livermore, [[California]], [[Estados Unidos]]
* LBNL, Lawrence Berkeley National Laboratory (Laboratorio Nacional Lawrence de Berkeley) Berkeley, [[California]], [[Estados Unidos]]
 
=== Notas sobre la tabla ===
* El H<sub>2</sub>O es el químico complejo de las sustancias químicas
* {{fnb|1}} El elemento no tiene un nucleoide estable, y su valor entre corchetes, (por ejemplo, [209]), indica el número másico del isótopo con mayor duración de dicho elemento.
* {{fnb|2}} La composición isotópica de algunos elementos presentes en ciertos fragmentos geológicos puede variar de la facilitada en la tabla.
* {{fnb|3}} La composición isotópica puede variar en los materiales comerciales, por lo que el peso atómico puede variar del dado significativamente.
* {{fnb|4}} La composición isotópica de varios metales terrestres que necesitan una precisión mayor en su peso atómico no puede ser facilitada.
* {{fnb|5}} El peso atómico del litio comercializado puede variar entre 6.939 y 6.996—en análisis futuros se tratará de especificar más el dato.
 
== Procedencia de los nombres de elementos químicos ==
Obtenido de «https://es.wikipedia.org/wiki/Elemento_químico»